package cn.sxt;
import java.lang.*;public class BooleanDemo { public static void main(String[] args) { // create a Boolean object b Boolean b; // assign value to b b = new Boolean(true); // create a boolean primitive type bool boolean bool; // assign primitive value of b to bool bool = b.booleanValue(); String str = "Primitive value of Boolean object " + b + " is " + bool; // print bool value System.out.println( str ); }}原文：http://www.cnblogs.com/hane/p/7275261.html