1. Converting int to char in java stackoverflow.comThis has probably been answered else where but how do you get the character value of an int value? Specifically I'm reading a from a tcp stream and the readers .read() method ... |
2. how to check if a char is passed as an int stackoverflow.comIs it possible to check if a char has been passed into a method that requires an int? For example, if you have some function foo(int bar) and someone uses that function ... |
3. String can't change. But int, char can change stackoverflow.comI've read that in Java an object of type String can't change. But int and char variables can. Why is it? Can you give me an example? Thank you. (I am a newer ... |
4. Concatenation char and int stackoverflow.comi've an error here , and couldn't solve it : |
5. Convert INT(0-255) to UTF8 char in Java stackoverflow.comsince I need to control some devices, I need to send some bytes to them. I'm creating those bytes by putting some int values together (and operator), creating a byte and ... |
6. Converting Chars to Ints in Java stackoverflow.comSystem: Windows Vista 32-bit, Java 6.0.2 I have a few questions about converting chars to ints. I run the code below, leaving myInt with a value of 4: |
7. Java: Subtract '0' from char to get an int... why does this work? stackoverflow.comThis works fine: |
8. Char into byte? (Java) stackoverflow.comHow come this happens: |
9. for (int charcode: message) stackoverflow.comAllow me to ask a stupid question. I am currently doing my tutorial work but I don't get what the (charcode: message) mean. |
10. Why can't I typecast from char to int? stackoverflow.comFor some reason, the following code does not work: |
11. Legal Java operations with integers and char stackoverflow.comSo the following: |
12. java int and char stackoverflow.comthe output here is normal 123 because as known substring in java take from beginIndex to EndIndex -1 but am surprised how char here is understood as 3 (int) because substring ... |
13. How to convert a stored int to char bytes.comin l1 has a value 0. So it is not printing anything. Try input string "FB". Now you can figure out that L2 prints the character. Regards Dheeraj Joshi |
14. Representing integer value to char coderanch.comI want to input an integer value and want the program to spell out that value as output. For this I wrote this piece of code - public class Say { public static void main( String[] args ) { int m = Integer.parseInt( args[0] ); Character ch1 = new Character( '0' ); ch1.forDigit( m , 10 ) ; System.out.println( ch1.forDigit( m ... |
15. convert string chars to int coderanch.comThere are actually a lot of ways to parse out those numeric values. An easy way is to get the value using the substring(int startpos,int endpos) method and then use Integer.parseInt(String value) method upon it. Be aware that a RuntimeException (NumberFormatException) is thrown by the parseInt method. If you do not catch it, it will throw an exception if the String ... |
16. int to char coderanch.comIn a program I have written, I read a photo file in InputStream. I convert the int I get in the Inputstream to Hexadecimal values using Integer.toHexString(). Later I am converting the hexadecimal values to int and then I am trying to regenerate into char. Some values do not get regenerated to the original char. I tried typecasting to char. i ... |
17. why int as return type in read() not char coderanch.compublic int read() throws IOException; read() in java.io.Reader returns int, and to print it we have to cast it to char. why not this method can have return type char instead of int. one point can be it returns -1 in case no char exist thats why it returns int, but that can not be a sole reason as it leads ... |
18. int To char coderanch.com |
19. int value of a char - is it unicode ? coderanch.com[B]isWhitespace[/B] public static boolean isWhitespace(char ch) Determines if the specified character is white space according to Java. A character is considered to be a Java whitespace character if and only if it satisfies one of the following criteria: It is a Unicode space separator (category "Zs"), but is not a no-break space (\u00A0 or \uFEFF). It is a Unicode ... |
20. Converting an int to a char coderanch.comJust reiterating that the method mentioned in the second post will not work as you are trying to cast an object (Integer) into a simple type (char). This should throw a compile time exception. The method mentioned in the third post is correct - directtly cast from simple type (int) to simple type (char). Of course if you really want it ... |
21. int and char coderanch.com |
22. cast of int to char coderanch.comconversions Are performed automatically when mixed numeric types appear within an expression. Variables and constants are not altered, but their values are copied to intermediate areas of larger size or precision to prevent possible data loss during the calculation. This is known as a "widening" conversion. The order of conversion (from narrowest to widest) is as follows: byte | short char ... |
23. Cast from int to char not working. coderanch.com |
24. Converting an INT to a CHAR ? coderanch.comI'm trying to find out what ASCII-numbers are equalent to the letters: "c", "o", "m". Perhaps not the easiest way, but I set up this code: for (int f = 0; f < 256; f++) { char c = f; System.out.println(c); } I knew it wouldn't work. Somehow, I need to convert the int to a char, or whatever. Almost like ... |
25. how keuwords like int, char, assert is accessable? coderanch.com |
26. Char into Integer coderanch.comOriginally posted by Manuel Diaz: Hi, I have a variable "c" of type char, I need to convert that variable to an integer value. How can I do this?. As you can see above, it depends on what you mean by "the integer value". Do you want the Unicode value? Or do you want the numerical value corresponding to the char ... |
27. adding int to char coderanch.comHello all, here`s a really small bit of code, [code] public class Test { public static void main(String[] args) { char c = 'c'; int i = 1; c+=i;//this part compiles c=c+i;//this causes a compiler error? } } in the above class it seems to me that both statements should create the same output ,as both statements are adding 1(one) to ... |
28. Int = Char coderanch.comgot it!...this was a gud one....got a chance to get part of my int-char concepts cleared! public class CharAndInt { public static void main(String args[]) { int i = 123; if((i > Character.MAX_VALUE) || (i < Character.MIN_VALUE)) { System.out.println("the int has no char match!!"); } else { System.out.println("The matching char value is: " + (char)i); } } } so this kinda ... |
29. Reading a char from int coderanch.com |
30. converting from integer to char coderanch.comWell, you can't. Both 'B' and 'b' are converted to 11 by the getNumericValue() method, just for one example. There are about 10 different Unicode characters that are converted to 1 -- you can find out what they are by writing a simple test program. In my experience answering these questions, usually people who are using getNumericValue() don't understand what it ... |
31. easier way to tell whether or not an object is an int or char... coderanch.comthanks, but i just made two char arrays, one containing Characters of the digits from 0-9, and another char array with Characters of the operators, +,-,/,*,^ and then i just looped through those arrays and compared to the character passed throught the method public class Converter { char [] ints = {'0','1','2','3','4','5','6','7','8','9'}; char [] ops = {'+','-','/','*','^'}; public boolean anInt(char T) ... |
32. int to char coderanch.com |
33. convert char to int in a string? coderanch.comHi guys, i got another knotty question. the program below might execute with no problem, but the real problem i facing is how do i convert a char to int? i intentally force an int into the int by >> num1 = first - '0'; but from my tutor, this is not the right way. public class Test { public static ... |
34. getting ascii char from int only seems to work if int is less than 127 coderanch.comAnother problem is that "ASCII" is meaningless beyond decimal 127. (And 127 is the DELETE character, so you can't see it.) There have been a number of different versions of "extended ASCII" assigning characters to values 128-255, but there is no one standard. Java uses Unicode, which for the first 256 characters is the same as ISO-8859-1. The fact that you ... |
35. Char To Int a->1 b->2 c->3 coderanch.comHi guys, i hav a bit of a problem well i am taking rows and colmn of a matrix as input in which rows are char and coloms are int. Display shows this 1 2 3 4 5 6 7 8 910 a . . . . . . . . . b . . . . . . . . ... |
36. int to char[] conversion without String-class? coderanch.comYou can use / 10 and % 10. The biggest issue with this is getting an array that's big enough. java.lang.Integer uses the following code for that: final static int [] sizeTable = { 9, 99, 999, 9999, 99999, 999999, 9999999, 99999999, 999999999, Integer.MAX_VALUE }; // Requires positive x static int stringSize(int x) { for (int i=0; ; i++) if (x ... |
37. Printing char actually prints an int? coderanch.comHey guys... so I'm working on a little program to show all the different edges for a graph. Example: ***ABCD would have the outputs: *AB, *AC, *AD I don't need help with the actual code as of now... but whenever I try to print, I get 173 instead of the expected *AB. Can't say I've seen this before either, so I'm ... |
38. Converting a char to an int java-forums.orgJava Code: public static Pos squareToPos(String square) { int x = -1; int y = -1; char col; char row; row = square.charAt(0); if (row == 'a') x = 0; if (row == 'b') x = 1; if (row == 'c') x = 2; if (row == 'd') x = 3; if (row == 'e') x = 4; if (row == ... |
39. Cast int to char java-forums.org |
40. Assignment of char and int question java-forums.orgWhat I am trying to do is have the scanner read 5 separate numbers (five times) and then output characters associated with the input number without using any kind of loop. For example, if the number 1 is input, display b, number 2 display c, number 3 display 4, etc. My best shot produces long long code. Then I had an ... |
41. using a "char" sentinel value for "int" input java-forums.org |
42. convert from char to int forums.oracle.com |
43. Casting Object[] to Integer[]/Char[] forums.oracle.comI have following problem. Object[] myArray; need to delcare myArray later and so.. if(...){myArray={3,4,5};} else(....){myArray={'a','b','c'};} of course i can create new variables and cast to them; Integer[] arrayInt; /// arrayInt=(Integer[])myArray; Character[] arrayChar; ////............ but the problem is i wanna use one variable name in code after that. Only myArray!!! 1. Is there a way to change the type of given variable? ... |
44. Can't Find Symbol Method CharAt(Int),Can't Find Symbol Method IsDigit(Char) forums.oracle.comAlthough a method name can be any legal identifier, code conventions restrict method names. By convention, method names should be a verb in lowercase or a multi-word name that begins with a verb in lowercase, followed by adjectives, nouns, etc. In multi-word names, the first letter of each of the second and following words should be capitalized. Here are some examples: ... |
45. char and int forums.oracle.com |
46. Help Please...Converting int to char forums.oracle.com |
47. extract the int and char (beginner) forums.oracle.com |
48. Can I store char value in int ? forums.oracle.comchar represents a 2 byte unsigned integral type. It is treated specially by some language features and methods, but under the hood, it's really just a short unsigned int. Since all values that fit into a char will safely fit into an int, Java lets you assign a char value to an int and will implicitly widen the integer value stored ... |
49. Int to char and general question forums.oracle.comFirstly, when I use the getNumericValue. what value am I getting? Because it's not ASCII, and I don't believe it's Unicode either, or is it (can't find a table to confirm this)? Secondly, how do I get a char back from the int I've gained from the getNumbericValue method. So I've the numeric value for 'a' is 10, but I wanna ... |
50. Implicit conversion from datatype 'CHAR' to 'INT' is not allowed.(plsseecod forums.oracle.com |
51. why char is accepting final int only . forums.oracle.comBasically because in the second case the compiler consideres i to be equivalent to a compile-time constant (since it can easily tell with absolute certainty which value i has when the assignment to c happens). In the first case it is considered a variable and since an int is not guaranteed to fit into a char, you'll have to cast to ... |
52. Converting Char to Ints forums.oracle.comDear BDLH; I am sorry; evidently you cannot see inside of my head where all the rest of the information is abiding and hiding(at least that's my husband's claim)>;-). This method is part of my anagram tester. My goal is to have it step through the array that is sent to the method (left that part out, didn't I), change the ... |
53. Int to Char...I don't know what the problem is here forums.oracle.comAnd for that matter, use increment/decrement assignment operators (like += and -=) instead of verbosely repeating the variable. And if you're going to use character-by-character case conversion, use the methods in Character don't do it like a C programmer circa 1982. And if this is anything other than a homework assignment, use encryption code provided in the JDK; don't reinvent it. ... |
54. combine two ints into a long without using chars or strings. forums.oracle.comHi I have two ints and i need to combine (not add) them into a long value. The reason for this is because I need the make keys for a DB containing both values. eg. int1 = 3567453647 int2= 6368535795 long combination = combine(int1, int2); and the value of combination should be 35674536476368535795 I know you can doing it by turning ... |
55. Difference between char and int forums.oracle.comYou could write your own parser, including your own tokenizer, from the ground up, using the methods in the String and Character classes, and maybe some regex to tokenize and then stacks and other data structures for the parsing. However, for all but very trivial cases, that will be well beyond your current ability. |
56. Assignment of integer numerals to char forums.oracle.comInteger literals are of type int, so char c = 1 trying to put the int 1 on the RHS into the char c on the LHS. In general, you need to cast when you're trying to assign an int value to a char, but in this case the int expression is a compile time constant, so the compiler knows that ... |
57. int to char forums.oracle.com |
58. Converting from int to char forums.oracle.com |
59. Char to int? forums.oracle.com |
60. need help converting char to int forums.oracle.comi have been cracking my head for a while on this. i have a string "rt 67 99" now what i want to do is, convert 67 and 99 from string to integers.? this is what i have done so far:- i have written a code that converts strings to char arrrays. and i am thinking of converting the char arrays ... |
61. Cast integer to char forums.oracle.com |
62. Converting ascii value (int) to a char forums.oracle.com |
63. char to int forums.oracle.com |
64. treating char as int forums.oracle.com |
65. Make a integer to full 5 chars forums.oracle.com |
66. converting from int to char forums.oracle.comException in thread "AWT-EventQueue-0" java.lang.Error: Unresolved compilation problem: The local variable c may not have been initialized at MyBaseConverter.letter(MyBaseConverter.java:127) at MyBaseConverter.actionPerformed(MyBaseConverter.java:74) at javax.swing.AbstractButton.fireActionPerformed(Unknown Source) at javax.swing.AbstractButton$Handler.actionPerformed(Unknown Source) at javax.swing.DefaultButtonModel.fireActionPerformed(Unknown Source) at javax.swing.DefaultButtonModel.setPressed(Unknown Source) at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(Unknown Source) at java.awt.Component.processMouseEvent(Unknown Source) at javax.swing.JComponent.processMouseEvent(Unknown Source) at java.awt.Component.processEvent(Unknown Source) at java.awt.Container.processEvent(Unknown Source) at java.awt.Component.dispatchEventImpl(Unknown Source) at java.awt.Container.dispatchEventImpl(Unknown Source) at java.awt.Component.dispatchEvent(Unknown Source) at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown ... |
67. How should I call native code hal_register(int (*callback)(char *)) in java forums.oracle.com |