一个窗口为一个类,在A画面上单击一个按钮,弹出B画面,怎么样实现第一次单击按钮弹出B窗口后,再单击此按钮只将刚刚弹出的B窗口激活?谢谢各位了!我的按钮响应事件是这样写的:
jButton1.addMouseListener(new java.awt.event.MouseAdapter() {
public void mouseClicked(java.awt.event.MouseEvent e) {
AB02000 frmefile = new AB02000();
frmefile.setVisible( true);
}
});
jButton1.addMouseListener(new java.awt.event.MouseAdapter() {
public void mouseClicked(java.awt.event.MouseEvent e) {
AB02000 frmefile = new AB02000();
frmefile.setVisible( true);
}
});
初始为false
点击一次变成true
然后就可以随便你控制了
public class 类{
private AB02000 frmefile =null;
......
jButton1.addMouseListener(new java.awt.event.MouseAdapter() {
public void mouseClicked(java.awt.event.MouseEvent e) {
if(frmefile==null){
frmefile = new AB02000();
frmefile.setVisible( true);
}else{
frmefile.setVisible( true);
frmefile.show();
}
}
});
......
}