[UnrealEd]

I was trying to convert a simple Integer to a binary string, using the static Integer.toBinaryString(int arg0) method.
When i run the following code, a String of length 32 is outputted, while a String of length 8 suffise.

public class Test{
  public static void main(String[] args){
    // output= 11111111111111111111111111111111
    System.out.println(Integer.toBinaryString(255));
    // output= 11111111111111111111111110010000
    System.out.println(Integer.toBinaryString(144));
  }
} 

When manually converting the binary string back to an integer, the number simply doesn't match. When converting 255 to binary, the output should be:

Code:

1111 1111
  1 * 2^7
  1 * 2^6
  1 * 2^5
  1 * 2^4
  1 * 2^3
  1 * 2^2
  1 * 2^1
  1 * 2^0
+ --------
   255

Is this method returning a wrong result (i doubt that), or am i just wrong with my calculation or interpretation?

Thanx,
UnrealEd

[King Coder]

I'm getting the correct output with the code you provided:

Code:

11111111
10010000

Honestly, it looks like you might not have cleared previous runs in the output window. Can you make sure this isn't happening and try a different output window?

[UnrealEd]

i've found it. This is the code i was using:

protected void parseAudioInformation() throws IOException {
        fileStream.seek(0);
        byte[] ai = new byte[4];
        fileStream.read(ai);
        System.out.flush();
        for (int i = 0; i < 4; i++) {
            int t;
            if ((int) ai[i] < 0) {
                t = (ai[i] + 256);
            } else {
                t = ai[i];
            }
            System.out.println(t + " = " + Integer.toBinaryString(ai[i]));
        }
    } 

It reads 4 bytes from an mp3 file. The code in my first post was just an example of the bytes i recieved. As bytes range from -127 to 127, and not 0 to 255, i was getting the binary string for "-1", and not "255". I just needed to change the input parameter of the function to "t" instead of "ai[i]"

It's working now i changed it,
Thanks