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class Student{
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private String name;
private int age;
private String degree;
public Student(String name, int age, String degree) {
super();
this.name = name;
this.age = age;
this.degree = degree;
}
public Student() {
super();
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public int getAge() {
return age;
}
public void setAge(int age) {
this.age = age;
}
public String getDegree() {
return degree;
}
public void setDegree(String degree) {
this.degree = degree;
}
public void show(){
System.out.println("姓名：" + this.getName() + ". 年龄：" + this.getAge() + ". 学位：" + this.getDegree() );
}
}
class Undergraduate extends Student{
private String specialty;
public String getSpecialty() {
return specialty;
}
public void setSpecialty(String specialty) {
this.specialty = specialty;
}
public Undergraduate(String name, int age, String degree, String specialty) {
super(name, age, degree);
this.specialty = specialty;
}
public Undergraduate(String name, int age, String degree) {
super(name, age, degree);
}
public void show(){
System.out.println("姓名：" + this.getName() + ". 年龄：" + this.getAge() + ". 学位：" + this.getDegree() + ". 专业：" + this.getSpecialty());
}
}
class Graduate extends Student{
private String direction;
public String getDirection() {
return direction;
}
public void setDirection(String direction) {
this.direction = direction;
}
public Graduate(String name, int age, String degree, String direction) {
super(name, age, degree);
this.direction = direction;
}
public Graduate(String name, int age, String degree) {
super(name, age, degree);
}
public void show(){
System.out.println("姓名：" + this.getName() + ". 年龄：" + this.getAge() + ". 学位：" + this.getDegree() + ". 研究方向：" + this.getDirection());
}
}
public class exp1401 {
public static void main(String[] args) {
Undergraduate stu1=new Undergraduate("张三",23,"本科","工业自动化");
Graduate stu2=new Graduate("李四",27,"硕士","网络技术");
stu1.show();
stu2.show();
}
}
1.对象
6.java命令加上的java源文件 3个字节码文件
7，重写 重载、
10.GridLayout
三。
1.文件名为 A.java
2. x str
3.n%k == 0
public class Main {
public static void main(String[] args) {
Test test = new Test(true);
}
}
class Test {
public Test(){
System.out.println("Constructor one invoked!");
}
public Test(int x){
//此处添加代码
Test（）；
System.out.println("Constructor two invoked!");
}
public Test(boolean b){
//此处添加代码
Test（1）；
System.out.println("Constructor three invoked!");
}
}