Question

I have a binary file which contains image.i have to jump on different locations in file to read the image file. So far i am using mark and reset methods but these are not helping me as i want.
please somebody help me about that i,ll be really thankful.and i am using Input Stream to read the file.

Answer 1

You can use the java.io.RandomAccessFile to do this. The methods seek(long) and getFilePointer() will help to jump to different offsets in the file and come back to original offsets:

RandomAccessFile f = new RandomAccessFile("/my/image/file", "rw");

// read some data.

long positionToJump = 10L;

long origPos = f.getFilePointer(); // store the original position

f.seek(positionToJump);
// now you are at position 10, start reading from here.

// go back to original position
f.seek(origPos);