//常用基础类
public class ObjectClass {private String name;private int age;public void say(){System.out.println(name);System.out.println(age);}public void setAge(int age) {this.age = age;}public int getAge() {return age;}public void setName(String name) {this.name = name;}public String getName() {return name;}
}

测试类

public class test20 {public  static void main(String[] args){Object obj=new Object();ObjectClass usr=new ObjectClass();usr.setAge(6);usr.setName("歌谣");usr.say();}
}

运行结果