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//父类public void Person(){ public String name; public int age; public String sex; private int eyes; public void eat(){ } public void stdy(){ System.out.println("学习");} public void sleep(){ System.out.println("睡觉");} private void dancer(){ System.out.println("跳舞") }}//学生类public void Student extends Preson(){ public int num; public void play(){ System.out.println("玩游戏");}public void stdy(){ System.out.println("学生类重写:学习");}}//老师类public void Teacher extends Preson(){ public String teacherNo; public void fun(){ System.out.println("老师在家");}}//测试类public void test(){ Teacher t1=new Teacher(); t1.stdy;//因为teacher继承person所以把person中的stdy方法继承过来相当于他自身也有了这个方法,所以可以调用 System.out.println(t1);Student s1=new Student();s1.stdy; System.out.println(s1);}
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