hexadecimal « hexadecimal « Java Data Type Q&A

1. how to use setRGB() after modifying pixels? Do I need to use Hexadecimal?    stackoverflow.com

For my project, I have to read each pixel in an image, perform a math operation on each pixel, then display the results of the modified pixel in an updated image. ...

2. Java floating-point numbers representation as a hexadecimal numbers    stackoverflow.com

Why does 0x1p3 equal to 8.0? Why does 0x1e3 equal to 483 whereas 0x1e3d to 7741? It is confusing since 1e3d equals to 1000.0.

3. Converstion of HexaDecimal string to normal string    stackoverflow.com

In one of my application i have converted a string to hexadecimal value and i have stored the hexadecimal value in a file. later i am retrieving the values from the file ...

4. Java -- reading in hexadecimal numbers using a scanner    stackoverflow.com

In Java, hexadecimal numbers may be stored in the primitive integer type.

private static volatile final synchronized int x = 0x2FE;
However reading in a hex using the Scanner class's nextInt() method throws ...

5. Are hexadecimal numbers ever negative?    stackoverflow.com

Are hexadecimal numbers ever negative? If yes then how ? For binary you would have signed and unsigned. How would one represent them in Hex ? I need this for a ...

6. Parsing big hexadecimal numbers in Java    stackoverflow.com

I'm trying to parse into int a String which is hexadecimal number in my code (FF00FF00, for example) using Integer.parseInt(String string, int radix), but always get NumberFormatException. If I parse the ...

7. Hexadecimal to Japanese    coderanch.com

Hi All. This is regarding web development. i am using Tomcat 5.0 as the server. I want to save japanese characters . I am encoding the japanese chatacters using escape(jap_char) function of javascript. The corresponding Java file receives the japanese string in the format \uXXXX hexadecimal format. How can i convert this hexadecimal \uXXXX back to the Japanese character in java. ...

8. Hexadecimal    coderanch.com

9. Generate next hexadecimal?    coderanch.com

13. Hexadecimal    coderanch.com

14. Hexadecimal Floating-point literal    coderanch.com

15. please review- NumberFormatException in Conversation of String to Hexadecimal    coderanch.com

public class StringToHexaDecimal { public static void main(String[] args) { try { // attempt convert to hex String s = "0cv"; int i = Integer.parseInt( s,16 ) ; System.out.print ( " Hex Value of: " + s + " = " + i ) ; } catch(NullPointerException npe){ System.out.println(npe); } catch(NumberFormatException nfe){ System.out.println(nfe); } } }

16. Identify whether the string is a actual string or hexadecimal.    coderanch.com

The code is String temp = "526F75746572"; boolean ret; try { // try to parse the string to an integer, using 16 as radix int t = Integer.parseInt(temp, 16); // parsing succeeded, string is valid hex number ret = true; } catch (NumberFormatException e) { e.printStackTrace(); // parsing failed, string is not a valid hex number ret = false; } System.out.println("Is ...

17. Hexadecimal floating-point literals    coderanch.com

19. hexadecimal literals    forums.oracle.com

I dont get hexadecimal integer that represent values, ..... I have been looking online but all i can find is that they all start with 0x and 0x1a is 26. Well that doesn't really help me. how do u write 15, or 10, or 5. I mean i need something to go off of so i can figure this out rather ...

20. Hexadecimal literals    forums.oracle.com

Ok, how do you determine to what power you should use ? When do you use 16^2 or 16^5 for example ? Perhaps it would be more clear if it was first demonstrated with a decimal number, e.g. 1234 4 is the number of units, i.e. 4*10^0, because 10^0 = 1 3 is the number of 10s, i.e. 3*10^1, because 10^1 ...

21. Why would they use hexadecimal?    forums.oracle.com

22. how to converts a "HEX" string to hexadecimal    forums.oracle.com

23. Help for Implementing Hexadecimal Calculator !    forums.oracle.com

As far as I know mathematical operations - sum, square root etc - take numerical values as their operands, not numerals. In other words, the following all express the same thing. (Not a similar thing: the same thing) 3 x 6 = 18 (decimal numerals) 3 x 6 = 12 (hex numerals) three times half a dozen is a dozen and ...

24. Hexadecimal string of specified length    forums.oracle.com

25. Hexadecimal number    forums.oracle.com

26. i need to add hexadecimal numbers    forums.oracle.com

hi there, Actually i'm implementing an assembler, and i wish to find some tool in java that can help in dealing with hexadecimal numbers , do we have any class here like this or sth ?? or should i implement it myself ??? Waiting 4 any reply please. Thanks in advance. D.Roth..

27. Hexadecimal to Long    forums.oracle.com

I am looking for the method to convert 16-digit hex value to unsigned long; I tried using String hex = "0003F00000000000"; long lValue = Long.parseLong(hex.trim(), 16); System.out.println("theLong: " + lValue ); ut this is not giving me correct value, it will be great if anyone can let me know how to correct this.