java面向对象程序设计期末考试编程题！急！！！

===============================第一题==============================

import javaappletApplet;

import javaawtColor;

import javaawtLabel;

public class test extends Applet {

private Label label;

@Override

public void init() {

label=new Label("欢迎来到java世界！");

labelsetBackground(ColorBLUE);

setBackground(ColorPINK);

add(label);

}

}

===============================第二题==============================

因为没图,所以自己设计的界面

import javaawtBorderLayout;

import javaawteventActionEvent;

import javaawteventActionListener;

import javaxswingJButton;

import javaxswingJFrame;

import javaxswingJLabel;

import javaxswingJPanel;

import javaxswingJScrollPane;

import javaxswingJTextArea;

public class test implements ActionListener {

private JFrame frame;

private JLabel label;

private JTextArea jt;

private JScrollPane jsp;

private JButton show;

public test() {

frame=new JFrame("Test");

label=new JLabel("显示内容");

jt=new JTextArea(10,20);

jsp=new JScrollPane(jt);

show = new JButton("显示给定内容");

JPanel panel=new JPanel();

paneladd(label);

paneladd(show);

frameadd(jsp,BorderLayoutNORTH);

frameadd(panel,BorderLayoutSOUTH);

showaddActionListener(this);

show();

}

public void show(){

framesetLocation(200, 200);

framesetSize(300, 260);

framesetDefaultCloseOperation(JFrameEXIT_ON_CLOSE);

framesetVisible(true);

}

@Override

public void actionPerformed(ActionEvent e) {

labelsetText(jtgetText());

}

public static void main(String[] args) {

new test()show();

}

}

package employee;

public class Employee {

//员工私有属性

private String name; //员工姓名

private int age; //员工年龄

private String position; //员工职位

private int salary; //工资

/

给所有的属性指定初始值

@param name

@param age

@param position

@param salary

/

public Employee(String name,int age,String position,int salary){

thisname = name;

thisage =age;

thisposition = position;

thissalary = salary;

}

/

给name属性赋值

@param name

/

public void setName(String name){

thisname = name;

}

public String getName() {

return name;

}

/

给age属性赋值

@param age

/

public void setAge(int age){

if(age<18){

thisage=18;

Systemoutprintln("当年龄无效时，默认为18");

}else{

thisage =age;

}

}

public int getAge() {

return age;

}

/

给position属性赋值

@param position

/

public void setPosition(String position){

if(positionequals("售后服务") || positionequals("销售员") ){

thisposition = position;

}else{

thisposition = "售后服务";

Systemoutprintln("输入不符合要求，默认为售后服务");

}

}

public String getPosition() {

return position;

}

/

给员工工资赋值

@param salary

/

public void setSalary(){

if(age>=18 && age<=20){

thissalary = 1000;

}else if(age>=21 && age<=25){

thissalary = 1500;

}else if(age>=26 && age<=30){

thissalary = 2000;

}else if(age>=31 && age<=40){

thissalary = 3000;

}else if(age>=41 && age<=50){

thissalary = 3500;

}else if(age>=51){

thissalary = 4000;

}else{

Systemoutprintln("没有设置年龄或者年龄无效");

}

}

public int getSalary() {

return salary;

}

}

测试类

package employee;

import javautilScanner;

public class TestEmployee {

public static void main(String[] args){

Employee emp1 = new Employee(null, 0, null, 0) ;

Scanner sc = new Scanner(Systemin);

Systemoutprintln("请输入第一个员工姓名");

//获取输入的名字

String name1 = scnext();

emp1setName(name1);

Systemoutprintln("请输入第一个员工年龄");

//获取输入的年龄

int age1 = scnextInt();

emp1setAge(age1);

Systemoutprintln("请输入第一个员工职位");

//获取输入的职位

String position1 = scnext();

emp1setPosition(position1);

emp1setSalary();

Systemoutprintln("---------------------------------");

Systemoutprintln("员工1姓名为："+emp1getName());

Systemoutprintln("年龄："+emp1getAge());

Systemoutprintln("工作为："+emp1getPosition());

Systemoutprintln("工资为："+emp1getSalary());

}

}

第一次回答问题，玩玩而已但是还是希望采纳

interface PatCarel {

public void raise();

public void play();

}

class Worker implements PatCarel {

String name;

String sex;

Worker(String name,String sex) {

thisname = name;

thissex = sex;

}

public void raise() {

Systemoutprintln("喂养小猫");

}

public void play() {

Systemoutprintln("no time");

}

}

class Farmer implements PatCarel {

int age;

int income;

Farmer (int age,int income) {

thisage = age;

thisincome = income;

}

public void raise() {

Systemoutprintln("喂养小狗");

}

public void play() {

Systemoutprintln("no money");

}

}

class Officer implements PatCarel {

int income;

int age;

Officer(int income,int age) {

thisincome = income;

thisage = age;

}

public void raise() {

Systemoutprintln("喂养小鸟");

}

public void play() {

Systemoutprintln("have money");

}

}

public class TestInterface {

public static void main(String[] args) {

PatCarel p = new Worker("Tom","male");

PatCarel m = new Farmer(66,10000);

PatCarel q = new Officer (100000,60);

praise(); pplay() ;

mplay() ;

qraise(); qplay() ;

}

}

楼主一定看了马士兵的视频教程吧

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