Java MouseAdapter vs MouseListener
我有一个关于java的简短问题。为什么这样做有效:Java MouseAdapter vs MouseListener,java,swing,mouselistener,Java,Swing,Mouselistener,我有一个关于java的简短问题。为什么这样做有效: list.addMouseListener(new MouseListener() { public void mouseClicked(MouseEvent e) { // TODO Auto-generated method stub System.out.println("Mouse click."); } public void mouseEntered(MouseEvent e) {
list.addMouseListener(new MouseListener() {
public void mouseClicked(MouseEvent e) {
// TODO Auto-generated method stub
System.out.println("Mouse click.");
}
public void mouseEntered(MouseEvent e) {
// TODO Auto-generated method stub
}
public void mouseExited(MouseEvent e) {
// TODO Auto-generated method stub
}
public void mousePressed(MouseEvent e) {
// TODO Auto-generated method stub
}
public void mouseReleased(MouseEvent e) {
// TODO Auto-generated method stub
}
});
但这并不是:
list.addMouseListener(new MouseAdapter(){
public void mouseClick(MouseEvent e) {
System.out.println("Mouse click.");
}
});
谢谢你提前回复
PS我不得不添加更多的文本,因为讨厌的帖子添加脚本不允许我,因为我的帖子大部分都是代码。这是鼠标点击而不是鼠标点击的小拼写错误?抽象类MouseAdapter实现了MouseStener接口以及: mouseClicked
public void **mouseClicked**(MouseEvent e) {}
而不是:
public void **mouseClick**(MouseEvent e)
这种方法应该有效:
list.addMouseListener(new MouseAdapter(){
@Override
public void mouseClicked(MouseEvent e) {
System.out.println("Mouse click.");
}
});
啊,真漂亮。1+. 使用
@Override
注释以确保方法实际上是真正的重写的另一个原因。
list.addMouseListener(new MouseAdapter(){
@Override
public void mouseClicked(MouseEvent e) {
System.out.println("Mouse click.");
}
});