Advanced quizzes – Java iteration (loop) statements

The following Java exercise(s) are designed for advanced level developers. If the level is too hard, then I recommend to select an easier one or you might consider reading my article about this topic, which offers a theoretical explanation including more exercises. Read More: Java Iteration (Loop) Statements

Quiz 1: Three loops

What appears in the standard output when this program is invoked?

public class Loop{

    int n = 5;
    boolean b;

    void method(){
        for(int i=0; i<2; i++){
            System.out.print("-x"+i);
            for(int i2=0; i2<2; i2++){
                System.out.print("-y"+i2);
                for(int i3=0; i3<5; i3++){
                    n++;
                    System.out.print("-z"+i3);
                    if(n>7){
                        break;
                    }
                }
            }
            b = true;
            break;
        }
    }
    public static void main(String[] args){
        Loop loop = new Loop();
        if(!loop.b){
            loop.method();
        }
        else{
            System.out.print("-x0-y0-z0");
        }
    }
}

Select the correct answer.

a. This code is illegal at compile time.

b. This code is illegal at run time.

c. This code writes “-x0-y0-z0-z1-z2-z3-y1-z0” to the standard output.

d. This code writes “-x0-y0-z0” to the standard output.

e. This code writes “-x0-y0-z0-z1-z2” to the standard output.

f. This code writes “-x0-y0-z0-z1-y1-z0” to the standard output.

g. This code writes “-x0-y0-z0-z1-z2-y1-z0” to the standard output.

h. This code writes “null” to the standard output.

i. This code writes nothing to the standard output.

Article: Java iteration(loop) statements Quizzes: Beginner  Intermediate  Advanced

    Suggested Articles



• Advanced quizzes – Java arrays
• Advanced quizzes – Java abstract classes
• Java iteration (loop) statements
• Beginner quizzes – Java iteration (loop) statements
• Intermediate quizzes – Java iteration (loop)…
• Advanced quizzes – Java conditional statements

Sar Maroof is a professional software development teacher, gives master classes and publishes technical articles. He is also an expert software developer and worked for several big as well as small companies and later as a freelancer.

Subscribe to Sar Maroof's RSS feeds!  Mail this page to a friend!  Bookmark this page!

Facebook

Twitter

Reddit

Linkedin