怎样在JAVA中判断是否激活?

Question

怎样在JAVA中判断是否激活?谢谢!!各位!!急!!

Answer 1

不知道楼主指的是"焦点",还是"活动"
addWindowFocusListener(new WindowFocusListener() {
public void windowGainedFocus(WindowEvent event) {
System.out.println("windowGainedFocus");
System.out.println(isFocused());
System.out.println(isActive());
}
public void windowLostFocus(WindowEvent event) {
System.out.println("windowLostFocus");
System.out.println(isFocused());
System.out.println(isActive());
}
});
楼主参考一下吧