java类静态属性测试

java中的类静态属性在多个实例化对象中是共用的。

public class Comm {
public static  String test = "123";

public String getTest() {
return test;
}

public void setTest(String test) {
Comm.test = test;
}
}
/**************test*************/
Comm c =new Comm();
Comm d =new Comm();
System.out.println("test = "+c.getTest());
System.out.println("test = "+d.getTest());
Comm.test = "zzzzzzzzzzzz";
System.out.println("test = "+c.getTest());
System.out.println("test = "+d.getTest());
d.setTest("cccccccccccccc");
System.out.println("test = "+c.getTest());
System.out.println("test = "+d.getTest());

结果：

test = 123

test = 123

test = zzzzzzzzzzzz

test = zzzzzzzzzzzz

test = cccccccccccccc

test = cccccccccccccc