I used a for loop but

Use for loop to solve that.

public static void main(String[] args) {
        print("Java is easy to learn!");
        print("Java is object-oriented!");
        print("Java is platform-independent!");
}

public static void print(String s) {
        for (int i=0; i<4; i++) {
            System.out.println(s);
        }
}

Hope this help.

Like misiu said, there are multiple ways to do the same thing. I personally think the for loop is the best approach. But you could work with a while loop or do while loop as well. No to mention, if you didn't know how to work with loops then just copy/pasting the println() 4 times would work as well. In fact if you wanted to go even further then you could use recursion to solve this problem (though no recommended for something as simple as this). So there are tons of different solutions that would work. Its your job as a developer to figure out whats the best approach, what is less complex, and what is just plain easy to do. ;)

Yes, another loop: while, do...while. Or just four the same instructions. One under another.