Java的带GUI界面猜数字游戏的实现示例
先导包
importjava.util.*; importjavax.swing.*;
再写主方法
publicstaticvoidmain(String[]args){
}
新声明一个Scanner和随机数
publicstaticvoidmain(String[]args){
Scannerin=newScanner(System.in);
Randomr=newRandom();
}
让UIManager爬取系统窗口样式
try{
UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
}catch(Exceptione){
e.printStackTrace();
}
新建一个int类型的变量存储随机数
intsecret=r.nextInt(32)+1;
写入主程序
JOptionPane.showMessageDialog(null,"电脑随机生成了一个1~32之间的数，请猜出这个数","猜数字游戏",JOptionPane.PLAIN_MESSAGE);
Stringnumber2=(String)JOptionPane.showInputDialog(null,"请输入想猜的数：","猜数字游戏",JOptionPane.PLAIN_MESSAGE,null,null,"");
intnumber=Integer.parseInt(number2);
while(number!=secret){
if(number>secret){
JOptionPane.showMessageDialog(null,"你猜的数大了，请继续猜","猜数字游戏",JOptionPane.PLAIN_MESSAGE);
number2=(String)JOptionPane.showInputDialog(null,"请输入想猜的数：","猜数字游戏",JOptionPane.PLAIN_MESSAGE,null,null,"");
number=Integer.parseInt(number2);
}else{
JOptionPane.showMessageDialog(null,"你猜的数小了，请继续猜","猜数字游戏",JOptionPane.PLAIN_MESSAGE);
number2=(String)JOptionPane.showInputDialog(null,"请输入想猜的数：","猜数字游戏",JOptionPane.PLAIN_MESSAGE,null,null,"");
number=Integer.parseInt(number2);
}
}
JOptionPane.showMessageDialog(null,"恭喜你，你猜对了，电脑生成的随机数是"+secret,"猜数字游戏",JOptionPane.PLAIN_MESSAGE);
packagecom.demo05;
importjava.util.*;
importjavax.swing.*;
publicclassMathDemo03{
publicstaticvoidmain(String[]args){
Scannerin=newScanner(System.in);
Randomr=newRandom();
intsecret=r.nextInt(32)+1;
try{
UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
}catch(Exceptione){
e.printStackTrace();
}
JOptionPane.showMessageDialog(null,"电脑随机生成了一个1~32之间的数，请猜出这个数","猜数字游戏",JOptionPane.PLAIN_MESSAGE);
Stringnumber2=(String)JOptionPane.showInputDialog(null,"请输入想猜的数：","猜数字游戏",JOptionPane.PLAIN_MESSAGE,null,null,"");
intnumber=Integer.parseInt(number2);
while(number!=secret){
if(number>secret){
JOptionPane.showMessageDialog(null,"你猜的数大了，请继续猜","猜数字游戏",JOptionPane.PLAIN_MESSAGE);
number2=(String)JOptionPane.showInputDialog(null,"请输入想猜的数：","猜数字游戏",JOptionPane.PLAIN_MESSAGE,null,null,"");
number=Integer.parseInt(number2);
}else{
JOptionPane.showMessageDialog(null,"你猜的数小了，请继续猜","猜数字游戏",JOptionPane.PLAIN_MESSAGE);
number2=(String)JOptionPane.showInputDialog(null,"请输入想猜的数：","猜数字游戏",JOptionPane.PLAIN_MESSAGE,null,null,"");
number=Integer.parseInt(number2);
}
}
JOptionPane.showMessageDialog(null,"恭喜你，你猜对了，电脑生成的随机数是"+secret,"猜数字游戏",JOptionPane.PLAIN_MESSAGE);
}
}
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