import java.nio.*; import java.nio.LongBuffer; public class PutAtIndex { final static int index = 1; public static void main(String[] args){ long[] array = new long[] { 44645669, 57554776, 77557434 }; LongBuffer longBuf = LongBuffer.wrap(array); System.out.println("Value in buffer."); for (int i = 0; i < longBuf.limit(); i++) { System.out.println(longBuf.get()); } longBuf.put(1, 12345); longBuf.flip(); System.out.print("After putting value at index : " + index); System.out.println(" Value in buffer."); for (int i = 0; i < longBuf.limit(); i++) { System.out.println(longBuf.get()); } } }