import java.util.Arrays; 
class HelloWorld {
    public static void main(String[] args) {
        
        String a[]={"learn","coding","Keypoints"};
        System.out.println(Arrays.toString(a));
        System.out.println(Arrays.asList(a));
        
        int b[][]={{10,20},{30,40}};
        System.out.println(Arrays.deepToString(b));
        
    }
}