以下说法哪项是正确的()
class MyListener
extends MouseAdapter implements MouseListener {
public void mouseEntered (MouseEvent mev) {
System. out.println("Mouseentered.") ; }
}
时间:2021-01-08
人气:0
有程序如下,关于程序的描述哪个是正确的?
public class Person {
static int arr[] = new int[10];public static void main(String a[])
System. out.println(arr[0]); }
}
时间:2021-01-08
人气:0