为什么System.out.println(s1.schoolName);打印的结果是Tsinghua？

Question

class test{   String name;   static String schoolName;   public static void main(String args[])   {    test s1=new test();      s1.name="张三";      s1.schoolName="gdgm";      test s2=new test();      s2.name="Tom";      s2.schoolName="Tsinghua";      System.out.println(s1.name);             System.out.println(s1.schoolName);   }}

Answer 1

因为你写的schoolName是个类成员，全局变量

Answer 2

schoolName是static的,所有的test类实例的schoolName都是相同的;

s2.schoolName="Tsinghua";执行后s1.schoolName自然也是Tsinghua