student4.java

学习java编程的好程序

public class student4 extends student
{
    void print()
    {
        System.out.println("这是我的同学");
    }
    void print(String name)
    {
        System.out.println("这是小明的同学"+name);
    }
    public static void main(String[] args)
    {
        student4 st=new student4();
        student st1=new student();
        st.print();
        st.print("tom");
        st1.print();
    }
}
///学生类1继承学生类
class student 
{
    void print()
    {
        System.out.println("这是小明的同学");
        System.out.println("他很优秀的");
    }
}