java.lang.Long.byteValue() java.lang.Long.bitCount() java.lang.Long.compareTo() java.lang.Long.byteValue() package com.codingdict; import java.lang.*; public class LongDemo { public static void main(String[] args) { Long obj = new Long(30); // returns the value of Long as a byte byte b = obj.byteValue(); System.out.println("Value of b = " + b); } } java.lang.Long.bitCount() java.lang.Long.compareTo()