5号是我遇到麻烦的部分。我似乎无法比较或告诉所有三个是相同的。如果某人可以指出我正确的方向或提供任何帮助,我会很高兴。
以下是动作监听器的代码
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.util.Random;
public class SlotMachinePanel extends JPanel
{
private JRadioButton button1, button2, button3;
private JLabel instr, first, second, third;
private int check1, check2, check3;
//-----------------------------------------------------------------
// Constructor: Sets up the GUI.
//-----------------------------------------------------------------
public SlotMachinePanel()
{
// First Panel
instr = new JLabel ("Please spin a wheel");
JPanel one = new JPanel();
one.setPreferredSize (new Dimension(200,50));
one.setBackground(Color.green);
one.add(instr);
// Second Panel
button1 = new JRadioButton("Spin me!",false);
first = new JLabel ("1");
JPanel two = new JPanel();
two.setPreferredSize (new Dimension(200,50));
two.setBackground(Color.cyan);
two.add(first);
two.add(button1);
// Third Panel
button2 = new JRadioButton("Spin me!",false);
second = new JLabel ("2");
JPanel three = new JPanel();
three.setPreferredSize (new Dimension(200,50));
three.setBackground(Color.green);
three.add(second);
three.add(button2);
// Fourth Panel
button3 = new JRadioButton("Spin me!",false);
third = new JLabel ("3");
JPanel four = new JPanel();
four.setPreferredSize (new Dimension(200,50));
four.setBackground(Color.cyan);
four.add(third);
four.add(button3);
ButtonGroup group = new ButtonGroup();
group.add(button1);
group.add(button2);
group.add(button3);
button1.addActionListener(new ButtonListener());
button2.addActionListener(new ButtonListener());
button3.addActionListener(new ButtonListener());
add(one);
add(two);
add(three);
add(four);
setPreferredSize(new Dimension(200, 210));
setBackground(Color.green);
}
//*****************************************************************
// listener for button pushes
//*****************************************************************
private class ButtonListener implements ActionListener
{
//--------------------------------------------------------------
//
//--------------------------------------------------------------
public void actionPerformed(ActionEvent event)
{
int num;
Random generator1 = new Random();
num = generator1.nextInt(9);
Object source = event.getSource();
if(source == button1){
check1 = num;
first.setText(Integer.toString(num));
}
if(source == button2){
check2 = num;
second.setText(Integer.toString(num));
}
if(source == button3){
check3 = num;
third.setText(Integer.toString(num));
}
if((check1 == check2) && (check2 == check3)){
instr.setText("You Win");
}
}
}
}
使用此
运行import javax.swing.JFrame;
import java.awt.*;
import javax.swing.*;
public class SlotMachine
{
//-----------------------------------------------------------------
// Creates the main program frame.
//-----------------------------------------------------------------
public static void main(String[] args)
{
JFrame frame = new JFrame("Slot Machine");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.getContentPane().add(new SlotMachinePanel());
frame.pack();
frame.setVisible(true);
}
}
答案 0 :(得分:0)
似乎对我有用..
我刚刚编译并运行代码和,当所有三个代码都相同时,如果成功的话:
if((check1 == check2) && (check2 == check3)){
并且 jlabel instr显示消息:
You Win
如果你想添加另外一条消息,而不是所有三个都是相同的,请使用以下代码
if((check1 == check2) && (check2 == check3)){
instr.setText("You Win");
}
else {
instr.setText("You Did Not Win Yet");
}
奥雷尔,究竟是什么问题?
答案 1 :(得分:0)
您可以这样做:
if (label1.text.equals(l2.text) && label1.text.equals(l3.text)) doSomething();
答案 2 :(得分:0)
有两种方法可以检查玩家是否获胜。
第一种做法:
检查所有3个标签上的文字是否相同。
if (label1.getText().equals(label2.getText()) && label2.getText().equals(label3.getText()))
instr.setText("Win!");
单击按钮生成随机数时,可以将上述代码放在侦听器中。这样,每按一下按钮,就会检查一次胜利。
第二种做法:
每次生成随机数时,您都可以将该数字存储在3个int
个变量中。比较int
变量而不是3个标签的文本。
if ((val1 == val2) && (val2 == val3))
instr.setText("Win");