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1. How do you compare two version Strings in Java?    stackoverflow.com

Is there a standard idiom for comparing version numbers? I can't just use a straight String compareTo because I don't know yet what the maximum number of point releases there ...

2. Java library for free-text diff    stackoverflow.com

I need to match up two almost-the-same long freetext strings; i.e., to find index-to-index correspondences wherever possible. Because this is freetext, the comparison should not be line-based as in code diffing. Any ...

3. Java String Comparison:Which is faster?    stackoverflow.com

In a java app, assuming I have option of choosing the following comparison methods equalsIgnoreCase(String anotherString) compareToIgnoreCase(String str) Which one is faster? Thanks in Advance

4. Comparing Composer Names, Or How do I find a 'close enough' match between two strings?    stackoverflow.com

After finishing two cs classes, I've started working on a personal project in Java. I am writing a program that will look through a music collection and attempt to set ...

5. Similarity String Comparison in Java    stackoverflow.com

I want to compare several strings to each other, and find the ones that are the most similar. I was wondering if there is any library, method or best practice ...

6. Java: Why doesn't my string comparison work?    stackoverflow.com

Ok, this is stupid, but wtf is going on? I have a String variable in a servlet, which takes the value of a parameter and based on that value I make a ...

7. Username & password string comparison problem    stackoverflow.com

When I enter "abcd" in the passwordField, and use System.out.println(s21) - to check the password - it shows "[C@1372a1a", why?

  private void submit() {
    String s1 = ...

8. Comparing strings in java    stackoverflow.com

String string1 = "Hi there";
String string2 = "Hi";
String string3 = "Hi";

System.out.println(string1.substring(0, string2.length()) == string2); //1
System.out.println(string1.substring(0, string2.length()).equals(string2)); //2
System.out.println(string1.substring(0, string2.length()).compareTo(string2)); //3
System.out.println(string2 == string3); //4
System.out.println(string2.substring(0) == string3); //5
System.out.println(string2.substring(0) == string3.substring(0)); //6
Gives me the output:
false
true
0
true
true
true
I ...

9. String Compare Library    stackoverflow.com

I am looking for a Java 5 lbrary which let me compare some text as following lines returns true:

  • " foo bar " == "foo bar"
  • "foo\nbar" == "foo bar"
  • "foo\tbar" == "foo bar"
  • "féé ...





10. compare two strings in java    stackoverflow.com

I created one Java program to compare two strings:

String s1 = "Hello";
String s2 = "hello";

if (s1.equals(s2)) {
    System.out.println("hai");
} else {
    System.out.println("welcome");
}
It displays "welcome". I understand ...

11. Java. Ignore accents when comparing strings    stackoverflow.com

The problem it's easy. Is there any function in JAVA to compare two Strings and return true ignoring the accented chars? ie

String x = "Joao";
String y = "João";
return that are equal. Thanks

12. null pointer exception comparing two strings in java    stackoverflow.com

I got this error message and I'm not quite sure whats wrong:

Exception in thread "main" java.lang.NullPointerException
    at Risk.runTeams(Risk.java:384)
    at Risk.blobRunner(Risk.java:220)
    at ...

13. Dynamic if statement evaluation problem with string comparison    stackoverflow.com

I tried the example given in this thread to create if statement dynamically using BeanShell. But it is not working fine. Instead of using "age" variable as integer, ...

14. comparison of strings in Java    stackoverflow.com

I have an accident time variable in my database which is erroneous, for example the time could show up as 55 which means 00:55 or 0 which means 00:00. Another one ...

15. Java string comparison    stackoverflow.com

I am comparing substrings in two large text files. Very simple, tokenizing into two token containers, comparing with 2 for loops. Performance is disastrous! Does anybody have an advice or ...

16. What's the quickest way to compare strings in Java?    stackoverflow.com

What's the quickest to compare two strings in Java? Is there something faster than equals? EDIT: I can not help much to clarify the problem. I have two String which are sorted alphabetically and EXACTLY ...





17. List of objects vs string value comparison    stackoverflow.com

I expecting the following to return true.

   public class HudsonJob {

     private String name;
     private String status;
     ...

18. String Comparison in Java    stackoverflow.com

What is compare two strings lexicographically means?

19. comparing "the likes" smartly    stackoverflow.com

Suppose you need to perform some kind of comparison amongst 2 files. You only need to do it when it makes sense, in other words, you wouldn't want to compare JSON ...

20. Stringtemplate compare strings does not work    stackoverflow.com

Can someone explain why this does not work ?

StringTemplate query = new StringTemplate("hello " +  
               ...

21. How to compare different language String values in JAVA?    stackoverflow.com

In my web application I am using two different Languages namely English and Arabic. I have a search box in my web application in which if we search by name or part ...

22. Non-working if statement    stackoverflow.com

I have this code:

Node main_node = document.getDocumentElement();
NodeList main_node_list = main_node.getChildNodes();
for( int main_iterator = 0; main_iterator < main_node_list.getLength(); main_iterator++ ) {
    Node child_node = main_node_list.item( main_iterator );
   ...

23. Comparing to string with each other in Java    stackoverflow.com

I'm looking for a solution to compare two strings with each other. I have already found a few suggestions but i'm not really understanding how to do it. I want to ...

24. Comparing Strings Java    stackoverflow.com

I am trying to compare a string to a string value. Seems rather simple, however, the comparison is returning null. All I want is to output the matched value ...

25. String compare strange bug    stackoverflow.com

I have strange bug in my code. I have variable type and when I load that from class Settings ( implements persistable ) it has value "CPU 21" (type="CPU 21"), but ...

26. Why is string comparison failing in my code?    stackoverflow.com

I have an array in containing numbers that represent cable sizes (1, 1.5, 2.5, etc), stored as strings. In my program, the array is loaded into a spinner, which is working fine. However, ...

27. compare two strings java    stackoverflow.com

I want to compare two strings and find whether the first string contains the words in the second string. It should be like follow.

String 1 - Hello how are ...

28. How can I compare two strings in java and define which of them is smaller than the other alphabetically?    stackoverflow.com

I want to use the binary search algorithm to search the string which has been entered by the user in a very big sorted file. I can not compare the string ...

29. String comparison in Java    stackoverflow.com

I am working with Java code in JSP and I am trying to compare strings and I am having problem with that. I have declared two strings

s1 = "din";
s2 = "din";
However, the ...

30. How can I compare a string with smaller and smaller parts of another string?    stackoverflow.com

I have a multipart string like this:

String Y = "part1 part2 part3 part4"; // This is only an example value
I want to write a function that compares the complete string Y ...

31. comparing strings in java    stackoverflow.com

Good evening, I was asked to write down a code that by given 2 sorted Arrays of strings, returns the number of strings that appears in both of the arryas. The solution of ...

32. How to compare Object property name to a string?    stackoverflow.com

Is there a way to compare if the property in an Object is equal to a string? Here is a sample Objet named Person

public class Person {

    private String ...

33. Simple String comparison question    stackoverflow.com

Possible Duplicates:
String comparison and String interning in Java
What is the difference between .Equals and ==
Just a simple question about comparing strings. ...

34. Efficient way to compare version strings in Java    stackoverflow.com

I've 2 strings which contains version information as shown below:

str1 = "1.2"
str2 = "1.1.2"
Now, can any one tell me the efficient way to compare these versions inside strings in Java & ...

35. Weird Java Behaviour in string comparison    stackoverflow.com

Possible Duplicate:
Java string comparison?
I have encounter the following problem, I have an object called "lang", is a result from a method LanguageDetector.detect() which output ...

36. String issue - Java    stackoverflow.com

I am writing a program for class in which I analyze different product codes entered. It is pretty simple but I am having a problem. I am trying to end a ...

37. Java Compare Strings    stackoverflow.com

 /**
 * A method to compare Strings
 * @param arg1
 * @param arg2
 * @return 
 */
public boolean myQuickCompare(String arg1, String arg2) {
    boolean a = arg1.length() ...

38. A doubt in String Comparison    stackoverflow.com

I have a text file with 15 columns. i need to compare the strings in 4 and 14th column row by row whether they are same or not. If same, i ...

39. Comparing two identical strings with == returns false    stackoverflow.com

I am making an archive for my family. There are no syntax errors, however whenever I type in "Maaz", it evaluates realName == "Maaz" to false and goes to the else ...

40. Fastest way to lookup a String value    stackoverflow.com

I have a simple application that reads data in small strings from large text files and saves them to a database. To actually save each such String, the application calls the ...

41. java, Morphia how to compare strings when using the Morphia Find Methods    stackoverflow.com

Im new to this so here goes.
Trying to get a user called "Bob" from the MongoDb. I have the:

UserData ud = MonConMan.instance().getDb().find(UserData.class, "name","bob").get();
The "bob" cannot be found ...

42. Comparing String with String Values    stackoverflow.com

Possible Duplicate:
Java String.equals versus ==
I have a string called DomainType which usually holds values like "edu,com,org..etc" from a url. I used an if ...

43. Weird Java String comparison    stackoverflow.com

I'm having a minor issue with Java String comparisons. I've written a class which takes in a String and parses it into a custom tree type. I've written a toString class which ...

44. Comparing MD5 strings    stackoverflow.com

I have a java code where I am sending an md5 has over the socket to receive on the other side. I take in a password as the input and create ...

45. String Comparison in Java...?    stackoverflow.com

why first comparison ( s1 == s2 ) displays equal whereas 2nd comparison ( s1 == s3 ) displays not equal....?

    public class StringComparison
    {

 ...

46. Why does this work in Java and String length    stackoverflow.com

I just finished an issue in my homework, the purpose of this is to find the longest palindrome inside a string, so if you had a string "hellomomomkk" then it would ...

47. bad operand '<' I can't compare two Strings    bytes.com

return "Product " + number + " Type " + name + ". Cost..." + price + ". ...

48. Quickest way to compare strings?    coderanch.com

I want to do the following: 1. When a user reaches a page in the web application, to be able to know if it is a perfect match to a saved "special" page. To do this, I need to do a few things: 1. Save a page's relative URI (e.g. /section/somepage) 2. When a page is reached, compare them for equality ...

49. String Comparison    coderanch.com

Hi everyone, I am nearing completion on a program I am writing, but seem to have gone blank with regards to one last method. I have got a string which contains 7 characters(a combination of letters and numbers). These characters should be stored either in the format 2 letters, 2 numbers, 3 letters or 1 letter, 3 numbers, 3 letters. The ...

50. comparing Strings    coderanch.com

Hi, I would like to know if there is an easy way to compare the contents of one String with another String. For example, I have a List containing the following Strings: "Minnesota" "Wisconsin" "Indiana" "Michigan" I would like to return a list of states that contain the String "in", while ignoring case. Thanks!

53. Comparing Strings    coderanch.com

54. problem comparing strings...    coderanch.com

55. Comparing string with list...    coderanch.com

56. String Compare in Java    coderanch.com

57. Comparing two strings??    coderanch.com

I'm trying to get a program to take a string from user input and search an array to try and find a match for it. Now, the data in the string was extracted using StringTokenizer. My problem is...I can't get it to work. Here's a bit o' code... public void readDVDInfo()throws IOException { br = new BufferedReader(new FileReader("products.txt")); for(String movieInfo = ...

58. Comparing Strings    coderanch.com

59. String compare problem    coderanch.com

60. String Comparison(s)    coderanch.com

I am new to JS and am stumped: I have two fields that require a word be entered. The first word should mirror the second and visa versa. If both are equal, then when the user clicks a button, an alert displays stating: "The words are the same". However, if the word in the second field is different (even if the ...

61. Questions about string comparison    coderanch.com

62. Comparing two-character strings alphabetically.    coderanch.com

Disclaimer: I'm not sure if this belongs in Intermediate or Beginner, but I'm giving it a shot here. Please don't hurt me. What I'm trying to accomplish is this: I have to read in this field from a database, which is a two-character field that starts at "ZZ", and decrements "ZZ", "ZY", "ZX", "ZW", etc. I have to grab the last ...

63. comparing System.getProperty to string    coderanch.com

I'm trying to test whether the os is Windows XP by using the system.property("os.name") compared to a string "Windows XP". It is not working and I cannot figure out why. Can anyone point me in the right direction. My code is: import java.awt.*; import javax.swing.*; import java.awt.event.*; import java.io.*; import java.util.*; //read c:/b_conf.txt file //within that file set path to: c:/apache2triad/htdocs/refresh/read_file ...

64. String Comparison ?    coderanch.com

65. String: Lexicographically comparing them    coderanch.com

Dear Readers, I am implementing my own compareTo() method for comparing two Strings. I have done it and it works. I am not quite satisfied and was looking for improvements, if any. public int compareTo(Person p) { int result = 0; String currentName = getName(); String paraName = p.getName(); int minLength = (currentName.length()

66. String comparison    coderanch.com

The soul is dyed the color of its thoughts. Think only on those things that are in line with your principles and can bear the light of day. The content of your character is your choice. Day by day, what you do is who you become. Your integrity is your destiny - it is the light that guides your way. - ...

67. best approach to compare a string value    coderanch.com

That would certainly work. I have wondered myself, and sometimes use a hashmap instead. The theory being that the values is the map get hashed once when added (maybe at startup?), and then for every search, you're saving iterating over every single string. I don't actually know if this REALLY is more efficient though, it just seems as though it should ...

68. Strings comparison    coderanch.com

Yes, that behaviour is what you would expect. "zg" has the same contents as "z" + "g". That is what the equals() method tests for. Whenever you use an equals method, it is worth checking in that class' API documentation about equals. It should be shown as a method in its own right; if it appears in the box headed "inherited ...

69. doubts onRuntime String comparison like java == "ja"+"va"    coderanch.com

String literals are a little tricky. The compiler is smart enough to resolve "ja" + "va" into "java", which it knows is the same as what the variable java is set to. So, it sets the references to point to the same spot in the string pool. but it is NOT smart enough to know that "ja" + va, where va ...

70. comparing strings ...    coderanch.com

Are you sure both are in the same case. The String equals method is case sensitive so "historical" is not the same as "Historical". If you want a case insensitive equals use the method equalsIgnoreCase(..) The other thing to check for is that the string you're reading in doesn't contain any leading/trailing white space because " historical" is not the same ...

71. which is better to use when comparing Strings    coderanch.com

compareTo returns 0 when strings are equal, something else when they are not. So you can use it to do the job of equals() if ( a.equals( b ) ) if ( a.compareTo( b ) == 0 ) Besides being less typing and maybe some insignificant bit quicker, equals() communicates better that we're just checking for equality. You may find some ...

72. Best way to compare values (musical notes) and select corresponding string?    coderanch.com

Hi there I've created an app which is a musical/note pitch detector. The app currently outputs an integer (the Hz - ie the frequency of the note) for each slice of audio it's working on. At the end i am left with a vector that's full of different numbers which represent the frequency of each bit of audio (the audio is ...

74. Comparing Strings    coderanch.com

package testpack; import javax.swing.JApplet; import javax.swing.JOptionPane; public class OptionExample extends JApplet{ public void init(){ JOptionPane jop = new JOptionPane(); String string1 = jop.showInputDialog("Enter a String"); //Using this to get the String String string2 = "Hello"; if (string1.equalsIgnoreCase(string2)) { jop.showMessageDialog(this, "Both are Same", "Title", JOptionPane.INFORMATION_MESSAGE); } } }

75. comparing strings    coderanch.com

I've written a little program to compute the pay for some transcription work, but I've got a problem. The program needs to ignore where the format is "Standard" or "standard" (depending on what the user enters). I think I need to use some kind of logical OR operator, but I've used both | and || and gotten compiling errors. Here's the ...

76. Comparing two Strings    coderanch.com

Hello, Is there any API to compare two Strings and return true if any pattern in the string matches. Eg : String A = "abcdefghijk" String B = "pqrstcdef" Now the common string after comparing A and B is "cdef" . Is there something I can reuse to get such a comparison done ? Any help will be appreciated. Thanks, Aditya ...

77. API for fuzzy string comparison, soundex    coderanch.com

I need a class that will build soundex codes from whatever strings I ask of it. I also need some more information on how to compare the various codes to determin if I had a good search result. I have searched around a bit and have found nothing straight-forward. Thanks in advance.

78. String Comparison    coderanch.com

Hi, sorry if this is a lame question that I already ought to know (or has already been answered) Given Strings s1 and s2, I was wondering what the real difference between s1 == s2 and s1.equals(s2) is public class StringEqualsTest { public static void main(String[] args) { String s1 = "Hello World"; String s2 = "Hello World"; String s3 = ...

79. Comparing (==) strings    coderanch.com

c.toString() will actually create a new String everytime, it doesn't use the string from the string pool (The general concept in strings is whenever we use String s = new String("something"), there is a new object created in heap irrespective of the value passed, even if the second string has the same value as the first one. But when we use ...

80. == string comparison    coderanch.com

Hi, I read that string comparison using == should not be done, however when I use it in code it seems to work. Is this something that was changed in recent versions of Java? For example the following works and prints true. If I change one value it returns false. The Netbeans IDE does give me the warning "comparing string with ...

82. String Comparison Problem.    coderanch.com

First example: I set posTest to "C", display it and then test it for "C". The if statement works. playbyplayText is "CX". String posTest = "C" playbyplayText.append(posTest); if (posTest == "C")playbyplayText.append("X"); Second example: I pull the "C" out of my teamplayer object. The "C" displays but the if statement does not fire. playbyplayText is only "C". String posTest = teamplayer[teamball][who].getPosition(); playbyplayText.append(posTest); ...

84. Java String comparison dilemma    coderanch.com

In the code below, I was expecting System.out.println would not get executed but it does. If I switch the key and date position in CompareTo code then it won't execute. Could any one explain to me why it is so? package programbal; public class Class1 { public Class1() { } public static void main(String[] args) { Class1 class1 = new Class1(); ...

85. Fastest way to compare strings?    coderanch.com

Compare in what way? First you'd have to write a compare() method in java.util.Arrays, so probably equals. But if you followed the way most compare() methods operate, it would do something different than what equals() does, since equals() returns a boolean, and compare returns an int. So, do you want to compare, or find out if equals? And what method were ...

86. Errors Trying To Compare Strings    coderanch.com

Hello friendly Java experts! I am writing a Library program, in which books can be flagged as borrowed and not in stock. I was getting close to the end, and am now stumped with errors concerning one line of code (I think). The method inStock, is meant to loop through all of the book titles in an array, and if none ...

87. Trouble with String comparison    coderanch.com

Hi all, I made a little Magic 8Ball program which runs okay - it asks for input, then displays a random result from an array of responses (like the real thing, basically). I'm now trying to expand it so it keeps taking input and prints responses until the user types "q". To do this I'm using a While which checks if ...

88. Trouble with comparing strings    coderanch.com

Hi guys, I'm studying Java at my universtiy, and I'm working on a project. Now, here's my problem! :p So I'm making a tax calculator, here's my code: import java.util.*; public class TaxCalculator { public static String single = "S"; public static String head = "H"; public static String joint = "MJ"; public static String seperate = "MS"; public static void ...

89. Compare similar String    coderanch.com

90. homework help comparing strings    java-forums.org

10-19-2009 05:10 PM #1 djester55 Member Join Date Oct 2009 Posts 2 Rep Power 0 homework help comparing strings hey i'am really have issue with strings. The class baseboard has been provided to me for this project.i have to use indexof method to compare the two string values and highlight where the word was found and save it to ...

91. need in help in comparing Strings    java-forums.org

hi all... i have assigned two values for name1 and name2 and I am comparing it with the input name.... the issue i face is that what ever name i give Iam able to get the out put as First only.Not as "Second" and "No". Here is my code. import java.io.*; public class hello { public static void main(String args[]) throws ...

92. How compare two String?    java-forums.org

Reason you can't use String1 == String2 is because they are objects, not primitive data. Since String is an object and not primitive data, String1 == String2 compares their address instead of their values (which is what you're trying to do). You can do int1 == int2 or char1 == char2 or double1 == double2 to compare values because int, char, ...

93. comparing 3 strings with equalsignorecase    java-forums.org

import java.util.*; class test{ public static void main(String args[]){ Scanner sc = new Scanner(System.in); //ENTERING THE CLIENT'S STATUS AND VALIDATING IT System.out.print("Enter client's status (single,married,committed): "); String st; st = sc.next(); do{ //checking that the user input is correct ignoring whether the input is lower or upper case if(!st.equalsIgnoreCase("single") || !st.equalsIgnoreCase("married") || !st.equalsIgnoreCase("committed")) System.out.println("Status does not exist!! Re-enter status again:"); st ...

94. Compare between 2 Strings    java-forums.org

import java.util.Scanner; public class sort1{ private String str; public static void main(String[] args) { Scanner read = new Scanner(System.in); System.out.println("Type the first word"); String s1 = read.next(); System.out.println("Type the second word"); String s2 = read.next(); } public static int Compare (String s1, String s2) { if (s1.compareTo(s2) > 0) { return -1; } if (s1.compareTo(s2) == 0) { return 0; } ...

95. Compare two strings    java-forums.org

Hello, I wrote a little program that lets you compare the characters and display the number that are well or poorly placed, but I would like if there is a character in string1 that is not in string2, it is ignored. For example if string1: ABCD and string2 : ANBD, I want the program to tell me "2 well placed and ...

96. String to String Comparison being ignored    java-forums.org

Hey, new to Java, new to the forums, having some difficulties with comparing strings. (I think). In one of my classes I'm trying to pull some information from a dynamic file path using an underscore as a reference. This is the relevant function: savedir is set to something like "M:\Users\LeonsBuddyDave\Documents\My Dropbox\accounts\WI\smith_23456\initialpics" Java Code: private void setNameAndAccount() { int scorepos, namepos, accpos; ...

97. String object comparison issue    java-forums.org

Hi all, Here goes my piece of code /****************************/ class Simple1 { public static void main (String[] args) { String s1 = "Hello"; String s2 = "Hello"; String s3 = "Hello"; String s4 = new String(s3); System.out.println(s1==s2); System.out.println(s3==s4); } } /****************************/ I know that (s3==s4) will give false since s3 and s4 are different objects even though their contents are same. ...

98. cannot compare string    java-forums.org

99. Comparing Strings    java-forums.org

Sorry for the confusion. I was trying to use the compareTo method the strings already have, but the homework I was using was giving me fits. I think I got it, so I will solve this thread and post back if I have a problem in a few hours. Thanks all and sorry for the confusion once again.

100. null pointer exception in string comparison    java-forums.org

hi.. I want to compare the contents of text files. I have to display the mis matched strings and the number of mis matched words. Here i have my code below. but i get null pointer exception after the display of the mismatched words. the number of mis matched words is not getting displayed. can anyone fix the bug. thanks.. Java ...