以下Java程序运行的结果是:
public class Tester{
public static void main(String[] args){
   Integer var1=new Integer(1);
   Integer var2=var1;
   doSomething(var2);
   System.out.print(var1.intValue());
   System.out.print(var1==var2);
}
public static void doSomething(Integer integer){
    integer=new Integer(2);
    }
}
输出结果是: 1true
原文:https://www.cnblogs.com/YGlearning/p/15176977.html