java編寫一個“猜數(shù)”程序:該程序隨機在1到1000的范圍中選擇一個供用戶猜測的整數(shù)

Java源程序附后。

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本程序的特點是：

(1) 文本框只能輸入純數(shù)字；

(2) 界面較美觀；

(3) 代碼可讀性較好，有適當(dāng)?shù)淖⑨專?/p>

(4) 窗體一出現(xiàn)就在桌面居中。

import java.awt.*;

import java.awt.event.*;

import java.util.*;

import javax.swing.*;

public class GuessNumber {

private static final long serialVersionUID = 1L;

JFrame frame;

JTextField txtNum; //文本框

JButton btnStart; //按鈕

JLabel lblPrompt;

JLabel lblMessage;

static int source = 0;

static Random rand = new Random();

public GuessNumber(){

frame = new JFrame("Guess Number");

JPanel pnl1, pnl2, pnl3, pnl4;

pnl1 = new JPanel();

pnl1.setLayout(new FlowLayout(FlowLayout.LEFT));

pnl2 = new JPanel();

pnl2.setLayout(new FlowLayout(FlowLayout.LEFT));

pnl3 = new JPanel();

pnl3.setLayout(new FlowLayout(FlowLayout.LEFT));

pnl4 = new JPanel();

pnl4.setLayout(new FlowLayout(FlowLayout.LEFT));

txtNum = new JTextField(10);

btnStart = new JButton("開始");

lblPrompt = new JLabel("htmlbodyI have a number between 1 and 1000 can you guess my number?br/Please enter your first guess./body/html");

lblMessage = new JLabel();

pnl1.add(lblPrompt);

pnl2.add(txtNum);

pnl3.add(lblMessage);

pnl4.add(btnStart);

frame.setLayout(new GridLayout(4, 1));

frame.add(pnl1);

frame.add(pnl2);

frame.add(pnl3);

frame.add(pnl4);

txtNum.addActionListener(this.new TextAction());

txtNum.addKeyListener(this.new KeyAction());

btnStart.addActionListener(this.new ButtonAction());

frame.setSize(400, 200);

frame.setVisible(true);

frame.setLocationRelativeTo(null);

frame.setResizable(false);

}

public static void main(String[] args) {

new GuessNumber();

while((source=rand.nextInt(1000))==0);

}

//按鈕單擊后的事件處理

class ButtonAction implements ActionListener{

@Override

public void actionPerformed(ActionEvent e) {

JButton btn = (JButton)e.getSource();

if(btn == btnStart){

while((source=rand.nextInt(1000))==0);

txtNum.setEditable(true);

}

}

}

//文本框按回車后的事件處理

class TextAction implements ActionListener{

@Override

public void actionPerformed(ActionEvent e) {

JTextField txt = (JTextField)e.getSource();

if(txt != txtNum){

return;

}

int num = Integer.parseInt(txtNum.getText());

if(num == source){

lblMessage.setText("Correct!");

txtNum.setEditable(false);

txtNum.setBackground(frame.getBackground());

}

else if(num source){

lblMessage.setText("Too High");

txtNum.setBackground(Color.red);

}

else{

lblMessage.setText("Too Low");

txtNum.setBackground(Color.blue);

}

}

}

//限制文本框只能輸入數(shù)字

class KeyAction implements KeyListener{

@Override

public void keyPressed(KeyEvent e) {

}

@Override

public void keyReleased(KeyEvent e) {

}

@Override

public void keyTyped(KeyEvent e) {

int k = e.getKeyChar();

String text = ((JTextField)e.getSource()).getText();

if(!((k47 k 58) || (k==8 || k==KeyEvent.VK_PERIOD))){ //限制只能輸入數(shù)字

e.setKeyChar((char)KeyEvent.VK_CLEAR);

}

if(text.length() 4){ //限制數(shù)值的長度

e.setKeyChar((char)KeyEvent.VK_CLEAR);

}

}

}

}

java猜數(shù)字，如果猜對了，繼續(xù)猜，一共猜5次，求代碼。

import?java.util.Random;

import?java.util.Scanner;

public?class?caishu?{

static?int?i?=?0;

static?int?p;

public?static?void?main(String[]?args)?{

//?TODO?Auto-generated?method?stub

p?=?(int)?(Math.random()?*?100);

//System.out.println(p);

while?(i??5)?{

try?{

System.out.println("請輸入你要猜的數(shù)：");

Scanner?scanner?=?new?Scanner(System.in);

int?s?=?scanner.nextInt();

if?(p?!=?s)?{

if?(p??s)?{

System.out.println("你猜得數(shù)小了");

}?else?{

System.out.println("你猜得數(shù)大了");

}

}?else?{

System.out.println("恭喜你猜對了！");

return;

}

i++;

}?catch?(Exception?ex)?{

System.out.println("輸入的數(shù)據(jù)有誤！");

}

}

System.out.println("你的猜數(shù)次數(shù)已經(jīng)用完了！");

}

}

運行結(jié)果

Java 補全下面程序 猜數(shù)字

public class GuessNumber {

public static void main(String[] args) {

System.out.println("給你一個0至100之間的整數(shù)，請猜測這個數(shù)");

//隨機生成一個0至100之間的隨機整數(shù)

int realNumber=(int)Math.round(Math.random()*100);

//從鍵盤上讀入你的猜測；

System.out.print("請輸入你的猜測：");

int yourGuess=System.in.read();

//是否猜對的標(biāo)識

boolean isRight=false;

//循環(huán)校驗，直到猜對了為止

while(!isRight){

if(yourGuess realNumber){

System.out.print("猜大了，再輸入你的猜測：");

yourGuess= System.in.read()；

}

else if(yourGuess realNumber){

System.out.print("猜小了，再輸入你的猜測：");

yourGuess=System.in.read()；

}

else{

isRight=true;

System.out.print("恭喜你，猜對了");

}

}

}

}

用java編猜數(shù)字游戲。

import java.util.Scanner;

public class GuessNumber {

public static void main(String[] args) {

//隨機生成一個1-100的數(shù)

int randomNumber = (int) (Math.random() * 100 + 1);

System.out.println("輸入一個number");

//鍵盤輸入一個數(shù)

Scanner sc = new Scanner(System.in);

int guessNumber = sc.nextInt();

//

while(guessNumber != randomNumber)

{

if(guessNumber randomNumber)

{

System.out.println("猜大了，請繼續(xù)……");

}

else

{

System.out.println("猜小了，請繼續(xù)……");

}

guessNumber = sc.nextInt();

}

System.out.println("恭喜你，猜測正確！是否繼續(xù)猜數(shù)");

}

}

格式有點丑陋。