1. Java String Character Data Entry Program coderanch.comI have an assignment in my computer science course and i can't figure out how to get this code to work to these guide line this is the code import java.io.*; class Period2 { public static void main (String[] args)throws IOException { InputStreamReader inStream = new InputStreamReader (System.in); BufferedReader stdin = new BufferedReader (inStream); String mix; System.out.println ("Enter character: "); mix ... |
2. problem with new line character in the string coderanch.comThis is the most platform independent way to handle new lines: public static final String NEW_LINE = System.getProperty("line.separator"); That techniques asks the OS "hey this is the jvm. how do you start a new line in a string in your environment?" and so no need to hardwire any characters "\n" or "\r" or otherwise. |
3. Is there a way to ask if a string only 1 character (any 1 character) coderanch.com |
4. Need alternative to .toUpperCase(), messes up some characters coderanch.comI need to uppercase my part numbers before sending them to SAP. We were using .toUpperCase(), but recently ran into a part that contained a (latin Mu, micro) character. The .toUpperCase() method turns this into 'M'! I know this is kind of technically correct, but I doubt its ever what the developer wants. Anyway, does anyone have a good alternative ... |
5. Character shuffle coderanch.comHello, I'm trying to make a program that can shuffle characters in a word, except for the first and last character. I've already made the layout, filechoosers etc. in Swing, but i can't figure out how to write the method to separate the words when there is a space in the text. And i cant figure out how to shuffle the ... |
6. Find the last character in a srting. coderanch.com |
7. Control characters coderanch.comYour pattern is incorrect. It looks for 0x02 followed by a ? followed by 0x1f followed by a ? followed by 0x03. After all, "\\?" is the Java String representation of \? which is the regex for a single ?. Wait, not even that. Your 0x02, 0x1f en 0x03 are all ints. That means that your regex will be "2\\?31\\?3". You'll ... |
8. Unable to utilize method on Character? coderanch.comStatic methods do not require an instance to be called. So if you only needed an instance to call one method that does not depend on the instance's state, then yes, you will save memory by using a static method. Let's take a modified version your example, and assume that auto boxing does not use cached values*. Character grade = 'c'; ... |
9. Character Masking coderanch.comYou first have to understand the rules you want to apply. What are your requirements ? Is it as simple as "replace 6 characters from the 6th position of the string" ? Or is it something more complicated ? Do you need to do it in Java, or, if you are using a database, can you do it straight from your ... |
10. maximum characters in string coderanch.com |
11. All characters before 3 breaks in string coderanch.comIt'd be really great if you can post a part of your xml here as a sample and state clearly what you need to do on it and mention whatever you have tried so far...., so that people here can have a look at it and give their ideas on improving your processing. |
12. Extracting characters from a String coderanch.comHi, I would like to enhance this piece of code to do the following: - add the characters to a single element in an array. - add the digits to the next element in the same array. public class ConvertStringToAscii { public static void main(String args[]) { String test = "ABC123DEF"; for ( int i = 0; i < test.length(); ++i ... |
13. Get the characters from String. coderanch.com |
14. EOF character in java coderanch.comNo, that's not right. Java doesn't decide what gets to be a character or not. That's up to Unicode, and then Java just uses Unicode's definition of a character. But anyway it's possible to write any character you like into a file. So it wouldn't make sense to name one character as the "end of file" character; what would happen if ... |
15. finding duplicate characters in a String coderanch.comFirst, you have to define the problem better. Does 'M' equal 'm'? Some people would say yes, others would say no. Until you define the conditions, there is no point in answering. Next...please read Campbell's first post. Before you write any code, you should have a good idea how you'd do it using nothing more than paper, pencil, and your brain. ... |
16. Operations on characters coderanch.comfor both of the cases the ASCII |
17. what characters are used to containing a string coderanch.com |
18. character coding problem coderanch.comThe page you quoted is an "extended ASCII" chart. It is not standard ASCII - because that only defines character codes from 0 to 127. Your command prompt windows uses a different character encoding than what you see in that extended ASCII chart, so you don't see the same characters as in that chart. |
19. Finding common characters of two strings in O(n) coderanch.comHi, The following code I have written to find common characters between two strings.Can we do it in a better way but within linear time? import java.util.HashMap; import java.util.Iterator; import java.util.Set; public class Intersection { public static void main(String[] args) { intersection(args[0],args[1]); } public static void intersection(String a,String b) { HashMap |
20. How to hide characters in a string coderanch.com |
21. New Line Character Marshalling issue coderanch.comHi Udhaya, Can you be little more specific to your issue. Because i created one String object with newline characters "\n" and also with "\r" as given below String s = new String("string1 \n string2"); String s1 = new String("string1 \r string2"); During deserialization, both the output is proper as given below string1 string2 How you are inserting new line character ... |
22. Error:Non supported character set dbforums.com |
23. insert character dbforums.comThis sort of issue can be problematic to resolve. Coming from a British English background its not something I've had many dealings with as the default character set works fine for me. So the following is guesswork / distant memory... first off make sure the MySQL db is using the correct character set. I forget at what level you need to ... |
24. Character set Problem In Viewing Language dbforums.comHi All, I am using struct 1.2 and on jsp page I set character set as In head tag -- still I have problem of viewing Hindi language text in Mozilla browser (3.5) but In IE its display proper hindi format text.. Please suggest me possible way how to change character set so that I am able ... |
25. show limit character dbforums.com |
26. Bounding box for each character java-forums.org |
27. What is the character set used by java? java-forums.org |
28. Help with DND Character Creator project java-forums.orgHelp with DND Character Creator project Hey all. I'm in my final year of Java and as a significant part of our grade we are required to code and final project. I have chosen to make a character creator for DND that allows the user to allocate points to their character's attributes that draw from a point pool. Additionally, ... |
29. How to generate 8 character long alphanumeric string java-forums.orgpublic class AlphaNumeric { private static final String ALPHA_NUM ="0123456789abcdef"; public static String getAlphaNumeric(int len) { StringBuffer sb = new StringBuffer(len); for (int i=0; i |
30. Swapping Characters java-forums.orgyou could make a char array like this: char[] arr = pass.toCharArray(); then you could save the 2 chars that needs to be swapped in two temp char variables. then insert the 2 chars in their new positions in the char array and then convert the char array to a String... something like that..I hope you understand...maybe not the best solution, ... |
31. Swap characters in a string. java-forums.orgFor one assignment I just got today, I need to take a string and swap every other character. If the string is an odd length, leave the last character alone. i cant ONLY use .length(), .charAt(), and .substring methods from the string class. NOTHING ELSE! Examples: IN: laptop OUT: altppo IN: speaker OUT: psaeekr Any suggestions on how to go about ... |
32. Taking a character off the end of a string. java-forums.orgHello. I really need a solution for removing an unwanted carriage return at the end of a string. I have used one method, but it takes too long!!!! I am loading text files and putting the content into a JTextArea. However, I found that when I put the content of the string into the JTextArea there was always an extra carriage ... |
33. Non-ASCII Characters java-forums.orgHello. I have made a text analyser program which counts the different characters. One feature is that it needs to count the number of printing characters (as opposed to non-printing such as spaces, tabs and line returns). I am testing my program, but have just realised that the program does not recognise non-ascii characters such as and (British pound ... |
34. Limiting only one character in a string field java-forums.orgHi guys,, i'm new and still learning java, i was wondering i'm trying to limit a certain set of alphabets in a string field. For example, i'm having someone to input something, like a "this team vs that team" into a "team - team" so when someone inputs it, i just want to limit only one "-" . So if he ... |
35. how do I find acsii character? java-forums.org |
36. Specific amount of character in each line? java-forums.orgYes I am using PrintWriter, actually I read a file which has single int in each line total 64 lin4, and I create two dimentional array [8][8], and each int represent a specific character. and it is time to display this as an image. however when I try to write those character I wrote them in one line. But I want ... |
37. Swapping pair of character in a string java-forums.org |
38. problem with repeating characters java-forums.orgJava Code: package timsittlerbounceingball; import java.util.Scanner; public class Main { public static void main(String[] args) { Scanner keyboard= new Scanner(System.in); double vel, newvel, bounce, time, height; bounce=0; time=1; System.out.println("Enter the inital velocity of the ball"); vel=keyboard.nextDouble(); height=vel; System.out.println("Time:0 Height:0"); System.out.println("Time:1 Height:"+ vel); while(bounce<6) { vel=vel-32; // code for velocity equation and resulting height newvel=vel; height=height+newvel; time++; if (height<0) //simulates the bounce ... |
39. How to limit characters textbox in java java-forums.orgHi Friends, Am using netbeans for develop gui application.. i have placed one textbox(jTextField) from swing controls.. i want to enter only 4 letters in that textbox.. i.e., number or alphabet anything.. :) Any one please help me how to limit the text box values entering... Plzzzzzzzzzzzz Helppppppppp meeeeeeeee my dearrrrrrr friendssssssssss....... |
40. Exclude character java-forums.orgHi! I have a short question. I am trying to use the Scanner class to get a specific data from a Vector which I have converted to a string object. I use the replaceAll method to replace the character I dont wont to get. But my problem is that I have no idea hove I do to exclude the List element ... |
41. Best way to model table with header characters? java-forums.orgHi guys, I'm looking for the best way to model this table in Java. I thought about using seperate Arrays but it a) seems cumbersome b) Arrays don't have a key (index) character. Eventually my method will: Accept two string inputs (a plaintext & a key) For example, suppose that the plaintext to be encrypted is: ATTACKATDAWN The person sending the ... |
42. Character Occurence java-forums.orgI am new to java and I have an assignment that asked me to count the number of character and the number of occurrence. I have figured out the character count be I am not sure how to figure the number of occurrence. Can someone point me in the right direction? Here is my code so far.. Thanks in advance Java ... |
43. How to get the next character java-forums.org |
44. Get characters between specific elements in string java-forums.orgMulti-posting is not against the rules per se, but it is good etiquette to let all posts know about all the others. Since we are all volunteers helping in our free time, we appreciate it if you are considerate of our time and provide links to all multiposts so we can see them and not try to waste time duplicating that ... |
45. Issues with weird characters java-forums.orgI am having weird characters that show up in my java program such as "". I am using inputStream and reading from a .txt file. Also, what is weird is that when I run in netbeans preview mode or as an executable .jar I get different results. When running in netbeans preview I get two squares and as a .jar I ... |
46. Top ten most frequently occurring characters program java-forums.orgHi guys. I'm fairly new to java but I'm trying to make a simple program that reads a txt file and displays the top ten most frequently occuring characters along with the number of occurrences each. So far I've managed to get a list of all the characters within the txt file along with the number of occurrences for each character. ... |
47. using String.matches("\\S") does not work with more than one character forums.oracle.comThis is a rather simple question, Why is it that doing System.out.print("b".matches(" S")); produces true and System.out.print("ba".matches(" S")); produces false? using \S should return true if there are any non whitespace characters in the string but why is the result affected by how many characters are in the string? I just want to check if a string (of any length) contains ... |
48. As there is any method in java to wait computer until character is get. forums.oracle.com |
49. how to present this character "|" in java ? forums.oracle.comBobXu wrote: Thanks! But still I am not sure about this " |", why it needs two backslashes instead of one? As mentioned, String.split() uses regex pattern matching, and in regex the pipe character has a special meaning. So if you need to split on the pipe character literally, you have to escape it as '\|' for the pattern matcher. But ... |
50. Why aren't certain characters allowed? forums.oracle.com |
51. Intger.parseInt to 2 characters? forums.oracle.com |
52. How to get characters of a string one by one till the end of the string forums.oracle.com |
53. Character addition...urgent forums.oracle.comcan the following be one if a,b and c are all characters char c=16*a +b; it give the "LOSS OF PRECISON ERROR" can we do it by some other method ? Can we do this by converting the char into int adding and the back to char...if Yes how do we convert the int to char...is there any method available? plz ... |
54. List of characters based on locale forums.oracle.com |
55. Need help with Characters forums.oracle.com |
56. Is it possible to remap a key to another one? (not a character) forums.oracle.com |
57. How Can I get character key code? forums.oracle.comNo, no way. I didn't post the code for the robot actions, I just posted the code fraction where I am testing how to get the keyCodes of a string. charCode will not work, I need the values of the VK_* constants. I didn't posted all the code because it could polute the post with too many thinks that where not ... |
58. Resolving hexadecimal string into original characters forums.oracle.com |
59. Character Raplacing forums.oracle.comI assume you mean that you want to use the character string to generate HTML output involving images. Just loop through the characters in the string (use String.charAt() or whatever it's called) and then compare the characters with == against 'N' or 'Y'. Of course, generally one shouldn't use scriptlets, but then one shouldn't use JSP at all since it's garbage. ... |
60. Character arithmetic forums.oracle.com |
61. Finding a character in a string forums.oracle.comI have a RomanNumber class and an now trying to write a Calculator class. Im not sure how to go through the users input string to decide which operator they are using. VI + I VI - I I was using indexOf() but when I use that I can only pass in one operator to see if it is there ---- ... |
62. character corrution forums.oracle.com |
63. TextMessage problem: SMS has extra characters forums.oracle.com |
64. $ character in .CLASS? forums.oracle.comHi! I need to start to work in a medium-size application (500 classes) that some students have been developing for up to 2 years, the first thing I found is that for each .java file there are many (up to 30) .CLASS with the same name but with a $ and a sequencial number before the extension. For example: DlgOpcTFreq.java DlgOpcTFreq.class ... |
65. deleting/replacing non-alphabetic characters forums.oracle.com |
66. changing one character in a string...how hard can it be...??? forums.oracle.com |
67. Apostrophe and Quotation mark in character forums.oracle.com |
68. is there a return character in Java, like the "bel" character... forums.oracle.com |
69. how the println this character?? forums.oracle.com |
70. Scan 1 character at a time forums.oracle.comYou can use a java.io.Reader. It returns a character at a time. If you're using Scanner, I guess you could get a String for the line and then use getChars() or charAt() to get individual characters. Which you choose would probably involve the degree to which line endings are important, and the degree to which you'd want to process different lines ... |
71. Non-ANSI characters in Java forums.oracle.com |
72. how to output characters? forums.oracle.comHi, I just started java and I wanted to know how i can output characters such as " or a degrees symbol or anything like that. I understand each character has a unicode number but I just dont know the code to output that unicode number as the character I'm refering to. im using turbo jbuilder2007 if that makes any difference ... |
73. How to scan string of message and detect it character? forums.oracle.comI believe the OPs problem is to count the number of times each character occurs in a String, not to find out if one character occurs in the String. And I doubt his/her tutor meant for him/her to solve this problem using regexps. OP, you haven't posted all requirements I think, but you also need to show you've made an effort ... |
74. Character wrapper ? forums.oracle.comI dont know what you mean by "equate the String object with the Mylist object," but it sounds like you want a String representation of your MyList object. The most common way to do that would be by overrideing MyList's toString method and passing its results. Note that when you do that you've got a String. It's a completely separate object, ... |
75. string to character...please help forums.oracle.com |
76. how to handle Universal characters ?? forums.oracle.comHi, I was using the VARCHAR2 datatype in some of the columns for all my tables in my backend. This would work perfectly as long as we enter English chars from the front end(JSP). But if i try to change my language settings thru Control panel, then i could type non-english chars as well. But this would throw the exception something ... |
77. Deletion of Characters in String forums.oracle.comHi I having a problem. Below shows String s = "Hello"; for (int i = 0; i < s.length(); i++) { if (s.charAt(i) != 'e' && s.charAt(i) != 'o') { System.out.print(s.charAt(i)); } } If I want to let user to key in the string and the program will be able to delete the 'e' and the 'o'. How do I do ... |
78. Character chStore =new Character(new Character('Q').toLowerCase(charStore)) forums.oracle.com |
79. how to deal with franch character in java inside string forums.oracle.com |
80. Problem with Character.getNumericValue forums.oracle.comString name = "bobboli -_()!.k"; (inside a for loop) int codePoint = name.codePointAt(i); System.out.print(name.codePointAt(i) + " " + name.charAt(i)); Returns: A bunch of code point numbers and the characters of what cmd.exe can display (cmd doesn't display unicode, but that is another issue) char bill = ''; System.out.println(" " + Character.getNumericValue(bill)); System.out.println(" " + Character.getNumericValue('a')); System.out.println(" " + Character.getNumericValue('.')); Returns: -1 ... |
81. Issues with Characters & Strings forums.oracle.com |
82. Hi, Occurrences Of Every Character In A String forums.oracle.com |
83. Character Entities forums.oracle.comG'day all; i'm constructing a program that will tell the user properties of a given quadratic, using the parameters a, b, and c. (ax2 + bx + c). i'm finished the programming aspect, although in my range method, i'm unable to find the character entity code for "ER" in {y|yER}. I hope someone knows what i'm talking about. It took me ... |
84. Insert Character in a String ? forums.oracle.com |
85. US-ASCII LF character forums.oracle.comno, you can not replace the character, because you need an aditional character. If I'd be you, I'd rather substitute that in a String with replaceAll, or add the missing \r when I'm writing the bytes to disk. btw, in case that's sufficient: a more sophisticated edior than Windows Notepad will do the trick and accept \n as linebreak. |
86. Output showing little squares instead of characters... WHY!??!?! forums.oracle.com |
87. find a character forums.oracle.com |
88. The last character of a string forums.oracle.com |
89. java.lang.Character.isHyphen?????? forums.oracle.com |
90. Unknown initial character set index '48' forums.oracle.comHello, I have installed today the Mysql connector/j and every time I try to connect to mysql I get the following error. "java.sql.SQLException: Unknown initial character set index '48' received from server. Initial client character set can be forced via the 'characterEncoding' property." The line that produces this error is the following: conn = DriverManager.getConnection (url, userName, password); I have read ... |
91. How to initialize a String with the " character.? forums.oracle.com |
92. Stripping characters from the end of a string forums.oracle.comUse indexOf to find the first instance of /, then take the substring up the that index. Assuming of course that the string you're processing always has that pattern. If it will be a general url you're processing, then use the getter methods of the URL class to get the parts you want. |
93. character cannot be deferenced forums.oracle.com |
94. Specify Valid Characters in a String forums.oracle.comJust a suggestion.. for this kind of stuff you should probably use regular expressions.. You can easily validate that a string contains only 0 and 1 with something like this: public boolean validate(String s) { String PATTERN = "[01]+"; Pattern pattern = Pattern.compile(PATTERN, Pattern.CANON_EQ); Matcher matcher = pattern.matcher(s); if (matcher.matches()) return true; else return false; } Here, you can easily change ... |
95. character parameter forums.oracle.comYou need to realize that characters are stored on a computer as numbers. The numeric code for each character can be found by looking at an ascii chart. You need to look at an ascii chart. When you do, you will see that the lower case letters are all within a certain range of numbers. The same goes for the upper ... |
96. Problem processing character by character forums.oracle.comOkay, I'm not looking for anyone to do an entire method or anything, but I'm just wondering if anyone had any suggestions for a problem I'm having that involves inputting a string into a method that would then go through it character by character and process it... it's obvious what its supposed to do when you look at a sample input... ... |
97. Decryption Application: Storing character frequencies and ciphertext forums.oracle.comI have the task of building an application that decrypts a ciphertext that is currently being held in a .txt file. The ciphertext has been encrypted with some sort of substitution cipher. I have coded a class to perform a frequency analysis (so that the most commonly occuring character will be E etc). However, these values are held as simple float ... |
98. Combining Characters into a String? forums.oracle.comHmm, apparently I can't edit the first post. I think I got it. A little searching the forums, and I found +=. But now, I'm not actually getting values 0-f. It outputs a bunch of random characters like hearts and happy faces and stuff, and I get a pc beep. No other error message or anything. what's going on? EDIT: Thanks ... |
99. Create a string from characters forums.oracle.comIt is unusual to do MD5 on a Reader since MD5 is designed for bytes and the MessageDigest class has methods for appending bytes. I would have expect an InputStream rather than a reader. I suspect that you are using the wrong approach but without seeing more code I can't be sure. P.S. I hope you don't convert your digest bytes ... |
100. How to read/display a sentence after or before a specific character? forums.oracle.comHi I am trying to show a users firstName after the 1st charter i.e. the name is Kevin I only want to show EVIN not k, how would I do that? Can I use charAt?? and what if I want to show a users firstName before a certain character i.e. the name is Kevin I only want to show KEV and ... |