public static void swap(Integer a,Integer b) throws Exception { Field field = Integer.class.getDeclaredField("value"); field.setAccessible(true); field.setInt(a, a ^ b); field.setInt(b, a ^ b); field.setInt(a, a ^ b); }
public static void swap(Integer a,Integer b) throws Exception
{
System.out.println("后a = " + b +"后b = " + a);
System.exit(0);
}
public static void swap3(Integer a,Integer b) throws Exception
{
Field field = Integer.class.getDeclaredField("value");
field.setAccessible(true);
Integer tmp = a;
field.set(a, b);
field.set(b, tmp);
}
原文：http://www.cnblogs.com/doStudying/p/7851254.html