关于JAVA的题目：剪刀石头布的小程序！急急急！

import java.util.Random

import javax.swing.*

import java.awt.BorderLayout

import java.awt.Container

import java.awt.event.*

public class SmallGame extends JFrame {

private Random r

private final String[] box = {"剪刀","石头","布"纯历}

private JComboBox choice

private JTextArea ta

private JLabel lb

private int win=0

private int loss=0

private int equal=0

public SmallGame() {

setTitle("Small Game")

initial()

pack()

setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE)

setLocation(400, 300)

setVisible(true)

}

public void initial() {

r = new Random()

choice = new JComboBox()

for(int i=0i<box.lengthi++) {

choice.addItem(box[i])

}

ta = new JTextArea(3, 15)

ta.setEditable(false)

JButton okBut = new JButton("出招")

okBut.addActionListener(new ActionListener() {

public void actionPerformed(ActionEvent e){

ta.setText(getResult())

lb.setText(getTotal())

}

})

JButton clearBut = new JButton("清除分数")

clearBut.addActionListener(new ActionListener() {

public void actionPerformed(ActionEvent e){

ta.setText("")

win=0

loss=0

equal=0

lb.setText(getTotal())

}

})

lb = new JLabel(getTotal())

JPanel choicePanel = new JPanel()

choicePanel.add(choice)

choicePanel.add(okBut)

choicePanel.add(clearBut)

JScrollPane resultPanel = new JScrollPane(ta)

JPanel totalPanel = new JPanel()

totalPanel.add(lb)

Container contentPane = getContentPane()

contentPane.setLayout(new BorderLayout())

contentPane.add(choicePanel, BorderLayout.NORTH)

contentPane.add(resultPanel, BorderLayout.CENTER)

contentPane.add(totalPanel, BorderLayout.SOUTH)

}

public String getResult() {

String tmp = ""

int boxPeop = choice.getSelectedIndex()

int boxComp = getBoxComp()

tmp += "你出：\t" + box[boxPeop]

tmp += "\并亏n电脑出：做蔽搜\t" + box[boxComp]

tmp += "\n结果：\t" + check(boxPeop, boxComp)

return tmp

}

public int getBoxPeop(String str) {

return choice.getSelectedIndex()

}

public int getBoxComp() {

return r.nextInt(3)

}

public String check(int boxPeop, int boxComp) {

String result=""

if(boxPeop == (boxComp+1)%3) {

result="你赢了！"

win++

}

else if(boxPeop == boxComp) {

result="平"

equal++

}

else {

result="你输了！"

loss++

}

return result

}

public int getPoint() {

return (win-loss)*10

}

public String getTotal() {

return "赢：" + win + " 平：" + equal + " 输：" + loss + " 得分：" + getPoint()

}

public static void main(String[] args) {

SmallGame game = new SmallGame()

}

}

货不多说直接代码

public class car {

private String car_number

private float car_price

private float rebate//折扣

public float getRebate() {

return rebate

}

public void setRebate(float rebate) {

this.rebate = rebate

}

public String getCar_number() {

return car_number

}

public void setCar_number(String car_number) {

this.car_number = car_number

}

public float getCar_price() {

return car_price

}

public void setCar_price(float car_price) {

this.car_price = car_price

}

//设置唤碧价格参数

public void carString() {

car_price=1

car_number="100"

rebate=1

}

/差神/修改价格

public void modify(float price){

car car=new car()

car.setRebate(price)

}

public static void main(String agrs[]) {

car car =new car()

car.carString()/虚链亏/设置参数

System.out.println(car.getRebate())

car.modify((float)0.8)//修改

System.out.println(car.getRebate())

}

}

哈哈 我昨天刚做了这个作业 你够幸运

import java.awt.*

import java.awt.event.*

import javax.swing.*

import java.math.*

public class Homework10_3 {

public static void main(String args[]){

MathWindow win=new MathWindow()

}

}

class MathWindow extends JFrame{

JTextField text1,text2,text3

JPanel ps,pn

MathWindow(){

text1=new JTextField(10)

text2=new JTextField(10)

text3=new JTextField(10)

JButton button1,button2,button3,button4

button1=new JButton("加")

button2=new JButton("减")

button3=new JButton("乘")

button4=new JButton("除")

ps=new JPanel()

pn=new JPanel()

pn.add(text1)

pn.add(text2)

pn.add(text3)

ps.add(button1)

ps.add(button2)

ps.add(button3)

ps.add(button4)

add(pn,BorderLayout.CENTER)

add(ps,BorderLayout.SOUTH)

setBounds(100,100,370,150)

setVisible(true)

validate()

button1.addActionListener(new ActionListener(){

public void actionPerformed(ActionEvent e){

String s1=text1.getText()

String s2=text2.getText()

try{ BigInteger n1=new BigInteger(s1)

BigInteger n2=new BigInteger(s2)

n2=n1.add(n2)

text3.setText(n2.toString())

}

catch(NumberFormatException ee){

text3.setText("请输入数字字符")

text1.setText(null)

text2.setText(null)

}

}

})

button2.addActionListener(new ActionListener(){

public void actionPerformed(ActionEvent e){

String s1=text1.getText()

String s2=text2.getText()

try{ BigInteger n1=new BigInteger(s1)

BigInteger n2=new BigInteger(s2)

n2=n1.subtract(n2)

text3.setText(n2.toString())

}

catch(NumberFormatException ee){

text3.setText("请输入数字字符")

text1.setText(null)

text2.setText(null)

}

}

})

button3.addActionListener(new ActionListener(){

public void actionPerformed(ActionEvent e){

String s1=text1.getText()

String s2=text2.getText()

try{ BigInteger n1=new BigInteger(s1)

BigInteger n2=new BigInteger(s2)

n2=n1.multiply(n2)

text3.setText(n2.toString())

}

catch(NumberFormatException ee){

text3.setText("请输入数字字符")

text1.setText(null)

text2.setText(null)

}

}

})

button4.addActionListener(new ActionListener(){

public void actionPerformed(ActionEvent e){

String s1=text1.getText()

String s2=text2.getText()

try{ BigInteger n1=new BigInteger(s1)

BigInteger n2=new BigInteger(s2)

if(n2.toString()=="0"){

text3.setText("除数不能为0")

}

else

{

n2=n1.divide(n2)

text3.setText(n2.toString())

}

}

catch(NumberFormatException ee){

text3.setText("请输入数字字符")

text1.setText(null)

text2.setText(null)

}

}

})

setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE)

}

}

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