Challenges

Remember the rules for this are

• Try to use only the information given up to this point in this book.
• Try not to give up until you've given it a solid attempt

Challenge 1.

Write a method named printSquare which takes one int argument named size.

The size argument should control how big of a square is output.

// CODE HERE

void main() {
    printSquare(4);
    System.out.println();

    printSquare(3);
    System.out.println();

    printSquare(2);
    System.out.println();

    printSquare(1);
    System.out.println();
}

Challenge 2.

What happens if a negative number is given to your printSquare?

Make it so that if a negative number is given, it works the same as if a positive number was given.

// CODE HERE

void main() {
    printSquare(3);
    System.out.println();
    printSquare(-3);
    System.out.println();

    System.out.println();
    printSquare(-2);
    System.out.println();
    printSquare(2);
}

Challenge 3.

Write a method with four overloads such that the code in main can run unchanged.

// CODE HERE

void main() {
    f(2);
    f("b");
    f('9');
    f(new String[] { "s" });
}

Challenge 4.

Call the defined methods in a way that outputs "I did it!"

void i() {
    System.out.print("I");
}

void did(String what) {
    System.out.println("did " + what);
}

void space() {
    System.out.print(" ");
}

void main() {
    // Code here
}