Java 穆塞利斯滕纳-穆塞利克德
经过两个小时的搜索,我真的找不出为什么我的代码不起作用,所以我想知道你是否可以帮忙 我只想在按下按钮时看到“点击”。我的类Java 穆塞利斯滕纳-穆塞利克德,java,mouselistener,Java,Mouselistener,经过两个小时的搜索,我真的找不出为什么我的代码不起作用,所以我想知道你是否可以帮忙 我只想在按下按钮时看到“点击”。我的类MouseInput实现了mouseistener,在方法mouseClicked中,我得到的是system.out…(“单击”) 鼠标输入代码: `import java.awt.event.MouseEvent; import java.awt.event.MouseListener; public class MouseInput implements MouseL
MouseInput
实现了mouseistener
,在方法mouseClicked
中,我得到的是system.out…(“单击”)代码>
鼠标输入代码:
`import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
public class MouseInput implements MouseListener {
@Override
public void mouseClicked(MouseEvent arg0) {
// TODO Auto-generated method stub
System.out.println("Click");
}
@Override
public void mouseEntered(MouseEvent arg0) {
// TODO Auto-generated method stub
}
@Override
public void mouseExited(MouseEvent arg0) {
// TODO Auto-generated method stub
}
@Override
public void mousePressed(MouseEvent arg0) {
// TODO Auto-generated method stub
}
@Override
public void mouseReleased(MouseEvent arg0) {
// TODO Auto-generated method stub
}
}`
import java.awt.Canvas;
import java.awt.Color;
import java.awt.Dimension;
import javax.swing.JFrame;
public class Display {
private JFrame frame;
private Canvas canvas;
private String title;
private int width,height;
public Display(String title,int width,int height){
this.width = width;
this.height=height;
this.title=title;
CreateDisplay();
}
public void CreateDisplay(){
frame = new JFrame(title);
canvas = new Canvas();
frame.setSize(width,height);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setVisible(true);
frame.setFocusable(false);
frame.setResizable(false);
frame.setLocationRelativeTo(null);
canvas.setPreferredSize(new Dimension(width,height));
canvas.setMaximumSize(new Dimension(width,height));
canvas.setMinimumSize(new Dimension(width,height));
canvas.setBackground(Color.WHITE);
frame.add(canvas);
frame.pack();
}
public Canvas getCanvas(){
return canvas;
}
public JFrame getFrame(){
return frame;
}
}
对于显示类:
`import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
public class MouseInput implements MouseListener {
@Override
public void mouseClicked(MouseEvent arg0) {
// TODO Auto-generated method stub
System.out.println("Click");
}
@Override
public void mouseEntered(MouseEvent arg0) {
// TODO Auto-generated method stub
}
@Override
public void mouseExited(MouseEvent arg0) {
// TODO Auto-generated method stub
}
@Override
public void mousePressed(MouseEvent arg0) {
// TODO Auto-generated method stub
}
@Override
public void mouseReleased(MouseEvent arg0) {
// TODO Auto-generated method stub
}
}`
import java.awt.Canvas;
import java.awt.Color;
import java.awt.Dimension;
import javax.swing.JFrame;
public class Display {
private JFrame frame;
private Canvas canvas;
private String title;
private int width,height;
public Display(String title,int width,int height){
this.width = width;
this.height=height;
this.title=title;
CreateDisplay();
}
public void CreateDisplay(){
frame = new JFrame(title);
canvas = new Canvas();
frame.setSize(width,height);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setVisible(true);
frame.setFocusable(false);
frame.setResizable(false);
frame.setLocationRelativeTo(null);
canvas.setPreferredSize(new Dimension(width,height));
canvas.setMaximumSize(new Dimension(width,height));
canvas.setMinimumSize(new Dimension(width,height));
canvas.setBackground(Color.WHITE);
frame.add(canvas);
frame.pack();
}
public Canvas getCanvas(){
return canvas;
}
public JFrame getFrame(){
return frame;
}
}
我认为问题可能出在display.getFrame().addMouseListener(mouseInput)
:我假设display.getFrame()
返回扩展java.awt.Component
的类的实例;根据,addMouseListener
添加指定的鼠标侦听器以从此组件接收鼠标事件
我认为按钮上的事件不是来自您在其上注册侦听器的组件的事件:您可以尝试在画布实例而不是框架实例上注册侦听器吗?事件可能来自画布,而不是框架…首先,您可以使用内联鼠标适配器,而不是扩展鼠标侦听器,并且需要为鼠标代码创建单独的文件
第二,如果你想观察你的按钮上的点击,把监听器添加到你的按钮上
yourJButton.addMouseListener( new MouseAdapter()
{
@Override
public void mouseClicked( MouseEvent e )
{
{
//do stuff
}
}
});
您能提供鼠标输入的代码吗?我找不到它,它可能对识别问题很有用……当然,我试图编译您的代码,但它似乎使用了我找不到的Display
类(在JDK 10上编译)…现在这应该是所有,但很抱歉没有把它全部张贴在一起,谢谢你的回答哦,你一定是天才:谢谢你的回答…很高兴能帮上忙;-)!