1. Putting char into a java string for each N characters stackoverflow.comI have a java string, which has a variable length.
I need to put the piece |
2. Java add chars to a string stackoverflow.comI have two strings in a java program, which I want to mix in a certain way to form two new strings. To do this I have to pick up some ... |
3. What's the idiomatic way to turn a single char into a string in Java? stackoverflow.comRight now I'm using the following to minimize boxed object creation: |
4. char c=7; Why this statement will execute in java without error? stackoverflow.comchar c=7; The above statement will execute in java without error even though we are assigning a number to character. where 7 is not a character .Why will it execute? |
5. Character.getNumericValue() issue stackoverflow.comI'm probably missing out something, but why the two numeric values are equal to |
6. Possible loss of precision; extracting char from string stackoverflow.comI am getting a string from the user and then doing some checking to make sure it is valid, here is the code I have been using; |
7. In Java how does one turn a String into a char or a char into a String? stackoverflow.comIs there a way to turn a |
8. Tidy breaks links with not-latin chars stackoverflow.comI use java library Tidy to sanitize html-code. Some of the code contains links with Russian letters. For example |
9. what is the difference between (char)temp and Character.toChars(temp) and String.valueOf(Character.toChars(temp)) in java stackoverflow.comI got the same result from these, what is the difference? which is better? temp is an int, read from reader.read() |
10. Purpose of char in java stackoverflow.comI'm seeing both char and short are two bytes each, also the following is valid: |
11. Breaking Strings into chars that are in upper case stackoverflow.comI'm making a method to read a whole class code and do some stuff with it. What I want to do is get the name of the method, and make a String ... |
12. Java: Are chars " and \" the same? stackoverflow.comGiven: |
13. nextChar() in java stackoverflow.comIf I'm taking input with a scanner and I want to put a single character into a char type variable, what is the most efficient algorithm? I just noticed that both ... |
14. toLowerCase(char) method? stackoverflow.comApparently there is a method that takes a char and returns a char: http://download.oracle.com/javase/6/docs/api/java/lang/Character.html#toLowerCase(char) But I can't seem to get it to work. My code: |
15. "Char cannot be dereferenced" error stackoverflow.comI'm trying to use the char method isLetter(), which is supposed to return boolean value corresponding to whether the character is a letter. But when I call the method, I get ... |
16. How to let java to substitute chars in string and make it executable stackoverflow.comI haven't found any information if it's even possible. I want to use method or some other way to return string and put it into for loop so that when loop ... |
17. Java Char on actionscript stackoverflow.comI have java class which has a variable of type "char" now I have to conver that class on AS3 side . does any one know whats the java char equivalent ... |
18. Why do I need to initialise this? stackoverflow.com |
19. Char and String manipulation in Java stackoverflow.comA simple question that I don't know if Java has also a simple solution.
I have a string like: |
20. Why does new String("") compile while char c = '' does not? stackoverflow.comWhy are empty Strings valid and empty chars are not ? I would have thought an empty String is not a string but just a placeholder. The same for a char, but ... |
21. Adding char from string to stack stackoverflow.comI am trying to add the chars from a string in a textbox into my Stack, here is my code so far: |
22. How can I get multiple characters from a string? stackoverflow.comI'm trying to get the 5th, 6th and 7th digits from a list of digits.
E.g. I want to get the year out of the variable |
23. Java null char in string stackoverflow.comI'm trying to build a string in Java which will be at maximum 3 long and at minimum 1 long. I'm building the string depending on the contents of a integer array ... |
24. Reverse String in Java without using any Temporary String,Char or String Builder stackoverflow.comIs it possible to reverse |
25. Validate Strings to be of a exact "kind" (java) stackoverflow.comMy problem is that I cant make my string a valid one, The valid way is this: for example ---> "DP 3#4" this is a rule for a game, and i ... |
26. 8 chars unique String in Java stackoverflow.comIs there any way to generate 8 characters long random and unique String in Java? wf41Av5g
|
27. Java: String, Char, If, Error stackoverflow.comI am having trouble making a file, I think I have got the majority of it correct, but I'm having trouble getMorseCode() method. I am almost positive it begins with |
28. Why char[] performs better than String ?- Java stackoverflow.comIn reference to the link: File IO Tuning, last section titled "Further Tuning" where the author suggests using char[] to avoid generating String objects for |
29. char problem bytes.com |
30. String vs. Char coderanch.com |
31. dynamic char creation in java coderanch.com |
32. why doesnt char[] c=(char[]) arrayOfShorts work? coderanch.comIn short: Because a char[] is not a subclass of a short[]. Casting primitives is different than casting references. When you're casting a primitive value, you're telling the compiler, "Yes, I know that I might be losing something by converting a value stored in one container type to another container type." When it comes to reference casting, it's not so much ... |
33. String to char coderanch.comI am storing a flag in the database as type char, but it is set from a web page request object as a string. I need to convert it from type String to char in java. I tried String.charAt(0) which seems to convert to a char type untill I assign it to a variable of type char: char processed = processed_string.charAt(0); ... |
34. Casting String / char to self defined class coderanch.comI am trying to build an array of hex integers as a "Large_Integer" class/object. I can't seem to move the values passed from the user to the array. How can I do this? package mathLib; public class Large_Integer implements Comparable { private static final long serialVersionUID = 1L; private static Large_Integer[] lrgInHex(String hexString) { Large_Integer[] lrgInt = new Large_Integer[hexString.length()]; // Using ... |
35. delete and insert chars inside a along string coderanch.comHI, Pls tell me how to remove or delete chars and include chars in a string and also i have to replace the spaces into some other thing.I know to use the "replace()" to replace chars. Consider i have a very big string with some 6/7 lines[450 chars].I have to include a text in the first three line.then remove all the ... |
36. occurence of char in a string coderanch.comHi, a map is a good data structure, pairing each character to a count. You can do it like this using the Collections framework: import java.util.*; /*Count the occurences of characters in a string. **/ public class QuickTest { private static String data = "Hello"; public static void main(String[] args) { HashMap |
37. Want to make String LowerCase where first char should remain UpperCase coderanch.com |
38. char cannot be dereferenced coderanch.comHi can anybody help me? i have this piece of code and i get the error char cannot be dereferenced... im new at this.. this piece of code is in a method..and i have to count the total consonants in a word.. im trying to compare it to a string array of vowels. for (int outerCounter = (wordLength - 1); outerCounter ... |
39. Mask the string chars? coderanch.comHi, You might want to change your design. Not many humans can input 13 numbers correctly without seeing them on the screen. If you hide the correct numbers and people make mistakes it will only take a few times and they will give up on your application. Most applications that require credit card numbers let the user see the result and ... |
40. char simple initialisation problem !! coderanch.comhi abhinav, i am a new bie, i wrote this very simple program, when i compile this program on Dos then it is displaying the value of f and q as "a" why is this so...acc. to me it should have been displayed as NULL, when the same program i run in Kawa editor it is not showing anything ..why is ... |
41. Char to String coderanch.comHi all, I want to change a char "firstnum" to a string. Here is my code. private static String firstNumber( String s ) { char firstnum = s.charAt( 0 ); String x = Character.toString( firstnum ); return x; } And I get the error message: cannot resolve symbol symbol: method toString (char) location: class java.lang.Character String x = Character.toString( firstnum ); ... |
42. range of char coderanch.com |
43. toUpper, toLower for chars coderanch.compublic static char letter(boolean isUpper) { char[] letters = {'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R' ,'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z'}; double x = Math.random()*25; if (isUpper==true) return letters[(int)x]; else { char new_letter = letters[(int)x]; new_letter.toLowerCase('k'); return new_letter; } } The toLowerCse will not work. Char cannot ... |
44. Having a hard time today String[i]->char coderanch.com |
45. Last Questiion for today I hope char.length coderanch.com |
46. char insertion in strings coderanch.comHi jacq, Take care not to confuse programming convenience with the process necessary to achieve a result. Unless a string is sequenced in some way, or has some special indexing mechanism designed to enable characters to be found faster, the ONLY way to find a particular character is to search. There may be special methods such as indexOf() in the String ... |
47. replaceAll String to char coderanch.com |
48. Difference between valueOf(char []) and copyValueOf(char[]) coderanch.com |
49. Set a char to empty coderanch.com |
50. subtracting char's coderanch.com |
51. String to char[] coderanch.com |
52. manipulating a char coderanch.com>> Welcome to JavaRanch Lara. Thanks! I hope I can give something in return soon. >> Umm, I don't see anything wrong with the code. I just compiled and ran this: Darn :-) >> And it works fine. Are you sure that you are using single quotes in the if statement Yuppers: char testSub = testId.charAt(2); if (testSub == 'R') { ... |
53. "char cannot be dereferenced error" coderanch.comI'm trying to make a simple, 1-to-1 character conversion "Encryption" program. Here is the code: public class mono { public static void main (String args[]) { char[][] ct= { {'a','b'}, {'b','c'}, {'c','d'}, {'d','e'}, {'e','f'}, {'f','g'}, {'g','h'}, {'h','i'}, {'i','j'}, {'j','k'}, {'k','l'}, {'l','m'}, {'m','n'}, {'n','o'}, {'o','p'}, {'p','q'}, {'q','r'}, {'r','s'}, {'s','t'}, {'t','u'}, {'u','v'}, {'v','w'}, {'w','x'}, {'x','y'}, {'y','z'}, {'z','a'}, }; //ct[2][25] not ct[25][2] System.out.println("Type in ... |
54. char location... coderanch.com |
55. char to object coderanch.comWelcome to JavaRanch, liam! Which part of the problem you've described are you stuck on? Is it getting a character from a String? Is it just turning a char into an Object? Is it both? Note that for all of the Java primitive values, a wrapper type object can be created to hold the primitive value. In the case of a ... |
56. Is zero is different from (char)0 ? coderanch.comOriginally posted by Billybob Marshall: No I think I have to disagree. Although they both have the exact same bit-wise value in memory, there are a few subtle differences. First, 0 has an int type and (char)0 has a char type. IIRC, there are some implicit conversions made between the two, they are still not the same type. This leads the ... |
57. changing a String to a char coderanch.comI need to have the user enter A, B,C to decide their payment option and then I need to (in the same method) write code that says if the user selects a then the number of payments is 1 if b then number of payments 2 if c number of payments is 20 and pass that number to a method to ... |
58. Find one char in a String ? ? ? coderanch.comPROBLEM: String s (of indeterminate length) is passed to the method searchString(), the user is prompted to enter a one character search argument name s1. Object of the exercise is to count the number of times s1 occurs within s, regardless of case h = H, H = h, as it were. CAN ANYONE FIGURE OUT WHERE I AM GOING WRONG. ... |
59. Grabbing char from strings coderanch.comI have an array of strings that I need to query a specific char position of. Specifically, position 3 of an array of strings for a period. If the period shows up at a specific point in the string, its a type1 string and if the period is elsewhere its a type2 string. Is there anyway to grab the value of ... |
60. simple doubt on char coderanch.comI suggest you try writing a tiny program that sets char c1='1' and char c2 = 1 and then does a Systen.out.println( "c1 = " + c1 + " c2 = " + c2 ) and let us know the results. [ July 22, 2004: Message edited by: Marilyn de Queiroz ] |
61. String = char -- didnolikethis! coderanch.comJava is a strongly-typed language. The charAt() method returns a char, which you are trying to assign to a String reference variable. You can do one of several things, including changing your variable type to that of char or using the String.valueOf(char c) method to convert the char from charAt() to a string. Hope this helps.... |
62. How to assign a String as a char varable name coderanch.comI have a number of char varable names i.e. char pos1; char pos2; char pos3; char pos4; char pos5; char pos6; char pos7; I thought the above was a little long winded so I decided to use a for loop and assign the varable names to char i.e. String pos [ ] = new String [7]; String charVar [ ] = ... |
63. Why is RunThis(char arg[]) expecting a String? coderanch.comHi, Mannie - A String is a different thing in Java than it is in C. In C, a null terminated character array is a string; in Java, String is a full-fledged object. So, you can create a char array from the String object that you create when you put text between quotes, or you can change the method parameter to ... |
64. Difference between String.copyValueOf(char[]) and String.valueOf(char[]) coderanch.compublic static String valueOf(char[] data) Returns the string representation of the char array argument. The contents of the character array are copied; subsequent modification of the character array does not affect the newly created string. Parameters: data - a char array. Returns: a newly allocated string representing the same sequence of characters contained in the character array argument public static String ... |
65. char assignment coderanch.com |
66. Any tips on how to reduce a String's char[] length? coderanch.comStrings are immutable. If you change one it really is creating a new one behind the scenes. String a = "123456789" ; int l = a.length(); int l2 = a.toCharArray().length ; System.out.println( "" + l + " " + l2 ) ; //9 9 a = "12345678" ; l = a.length(); l2 = a.toCharArray().length ; a = "12345678" ; System.out.println( "" ... |
67. what does char name[] = new char[ 15 ], temp; do coderanch.com |
68. seeing id string has odd / even chars coderanch.com |
69. seeing id string has odd / even chars coderanch.com |
70. String to char problems coderanch.comHi Trying to compare the first charater from SQL return with all the characters from the Alphabet. I have all the code apart from one problem. The alphabet characters are of type 'char' and the SQL returns of type 'String' (or .substring(0,1) to be exact) but when I try to compare the alphabet letter with the String ( if(char == string)... ... |
71. char declaration coderanch.comHi, check out the code below. class chartest { public static void main(String[] args) { char c = '\u000d' ; // Line 5 char c = '\u000a'; // Line 6 char c = '\u0000'; // Line 7 char c = '\uface' ; // Line 8 char c = '\u00001' ; // Line 9 char c = '\101'; // Line 10 char ... |
72. Char with negative showing ? coderanch.comHi , Thanks for your answer. I agree that the char takes the last two bytes from the 2's compliment value of -10 . It could be some big value like 65535 in decimals9base 10).... Here I guess , it would do some mod operation on 65535 and then changes to some value less than 256 ,which can be printable. Am ... |
73. changing the color of one char coderanch.com |
74. How can i determine what is the char code set ? coderanch.com |
75. char + String = ok? coderanch.comOriginally posted by Henry Wong: Basically, when you are performing addition, and at least one of the two operands is a string. The compiler will convert the operation to ... create a stringbuffer, append the operands, and get the string result. It is the string buffer (or string builder class) that is overloaded to take a char, and does the conversions ... |
76. how to initialize char?? coderanch.com |
77. char coderanch.comHi Kunal, If you compile and run this, and it give you a compiler error, it GREATLY helps people figure out the problem if you post the EXACT text of that error message. It tells you all kinds of things, including where it thinks the error is (although it is sometimes wrong). Without that, people have to really study the code, ... |
78. char problem coderanch.com |
79. String to char. coderanch.com |
80. Char coderanch.comThe result of any addition is never smaller than an int. Therefore, char + char == int. This means that x + y is not a char anymore but an int, and is therefore printed as an int. You will need to cast the result back to char first to see it as a char. |
81. Validating other language chars coderanch.comTheir was a requirment to validate the other language input (may be hindi or Tamil) in java. As we know localisation concepts which will take care of ONLY ocalizing the string based on the locale. However it has nothing to do with other language input. I was thing is there any started way to identifiy a unicode is char or a ... |
82. chars coderanch.com |
83. how to get a char to use .toUpperCase? coderanch.com |
84. difference between char and character classes? coderanch.com |
85. Problem in String Buffer - incrementing char in string coderanch.com |
86. char[] security coderanch.comString pwd1 = "asdfgh"; // String literal String pwd2 = myObject.getPassword(); // Get it from elsewhere, e.g. user input or file // check password here pwd1 = null; pwd2 = null; // "asdfgh" still exists in String pool, but the former value of pwd2 is gone forever I guess if you were to do something dumb like hard-code a password into ... |
87. Simple question - char coderanch.comFileOutputStream f=new FileOutputStream("out.ser"); f.write(); Here, this write() method argument is of type int, so Unicode character value of '\n' i.e 10 is written to the file . but if i use ObjectOutputStream and use its writeChar(char) method instead of FileOutOutStream newline character is writene to the file . public void writeChar(){ char x = '\n'; FileOutputStream f=new FileOutputStream("out.txt"); f.write(x); //writes 10 ... |
88. Receiving code of the char ($xx) coderanch.comThanks for replys. But the point is that I'm receiving wrong values (I mean different than those provided by my teacher) My previous lesson was about "encryption", and after every lesson he is giving me different task, like write program in my language (which is going to be used during my school secondary school certificate - IT) For example for 'A' ... |
89. String Problem Char Index go4expert.comNeed help with returning a character stored at a stated index position while input is converted to uppercase. Now I can easily convert string from dialog to uppercase , and return a character at an index position.. but not both together. Example: Input First Name: Bob Input Surname Name: Rudlo Output would be converted to BOB RUDLO Im trying to just ... |
90. Need help with concatenizing char? to string? java-forums.orgI'm stuck, and having a bump in my program, here is a little snippet of the contructor just ot give you an idea. To Sum it up - I am running the letterCount to take in a string set by the client. It will take that string, and tally how many occurences of each letter occurs within that string inside an ... |
91. Char troubles java-forums.orgimport javax.swing.JOptionPane; public class Question_1 { public static void main(String[] arg) { //Get the input String input = JOptionPane.showInputDialog("Enter a series of numbers: "); //Translate input and get rid of white space to the left and right of the string input = input.replaceAll("0"," -----"); input = input.replaceAll("1"," .----"); input = input.replaceAll("2"," ..---"); input = input.replaceAll("3"," ...--"); input = input.replaceAll("4"," ....-"); input ... |
92. Char's questions java-forums.orgBy your statements above and elsewhere in the forum, you don't seem new to programming, just Java. Why not take a favorite program of yours written in whatever language you know, and re-write it from the ground up in Java. For e.g., any programmer worth their salt has attempted one of these: zooming the Mandelbrot set, displaying the game of life ... |
93. Problem with if statement - Char java-forums.org |
94. How get char by code? java-forums.org |
95. List of chars java-forums.orgthat helps a little bit but there are four chars that are the four card suits. im trying to put those in an array and then randomly pick one of them from that array. but i dont how to get those chars so i thought i would use a for loop to print out all of the chars then i could ... |
96. countin unique chars ! java-forums.org |
97. replaceALL(char oldChar, char newChar) method java-forums.org |
98. No of a specific char in a string java-forums.orgOriginally Posted by sonny test code please, Here it is: Java Code: import java.text.DecimalFormat; import java.text.NumberFormat; import java.util.Random; public class CharacterCountTest { private static final int TRIALS_PER_RUN = 10; private Random rnd = new Random(); public void run(int samples, int charCount, double frequency) { // generate test data String[] testData = new String[samples]; for (int i = 0; i < samples; ... |
99. Swap chars in a String? java-forums.orgSay I have a String that says "this is a test". I need to write code to swap each set of 2 chars, so for example, in this case, the swapped String would be "htsii s aetts". The 't' and 'h' in 'this' swap, the 'i' and 's' swap, the space and 'i' in 'is' swap, so on so forth. Can ... |
100. Make String into chars java-forums.orgpublic char charAt(int i) CharNode currentNode = _head; if(currentNode.getValue() == i) // if i equals value return currentNode.getData(); if(currentNode.getValue() > i) // if the first node's value is bigger than i, that just means that the same letter is used many times in a row... return currentNode.getData(); while(currentNode.getValue() < i){ // stops when the value is larger or equal to i ... |