CODEWITHSUNDEEP
java
John Rawls
John Rawls

Reputation: 259

Why doesn't making the return type String allow me to return a string in a function

So what I expected this code to display on console was

"hi"

"Ken is a legend"

"forkbomb"

public class ForkBombOnClick {
  public static void main(String[] args) {
    System.out.println("hi");
    ken();
    System.out.println("fork bomb");
  }
  public static String ken() {
    return ("ken is a legend");
  }
}

But instead it only displays hi and forkbomb. When I change it to public static void ken() then it returns what I wanted the value to be but I was wondering. Why doesn't this current code work?

Upvotes: 0

Views: 61

Answers (3)

drowny
drowny

Reputation: 2147

You should use return value in print statement which is string as "ken is a legend" . Your final code should be like this ;

public class ForkBombOnClick {
    public static void main(String[] args) {
        System.out.println("hi");
        System.out.println(ken());
        System.out.println("fork bomb");
    }

    public static String ken() {
        return "ken is a legend";
    }
}

or more clear version of code ;

public class ForkBombOnClick {
    public static void main(String[] args) {
        System.out.println("hi" + "\n" + ken() + "\n" + "fork bomb");
    }

    public static String ken() {
        return "ken is a legend";
    }
}

In this System.out.println("hi" + "\n" + ken() + "\n" + "fork bomb");

  • \n refers to newline.

Upvotes: 1

Michał Turczyn
Michał Turczyn

Reputation: 37377

You know the answer yourself!

Why do you use System.out.println? To print on the screen string that you pass to the function.

You do it correctly by System.out.println("hi");, so it prints hi.

Now, you want to print string returned by ken() method. It has string as return type, so you can think of ken(); invocation as a string. Just like hi.

So if you want to print it, you need to use System.out.println and supply result of ken() method to it, just like with other strings: System.out.println(ken());.

Upvotes: 1

codingenious
codingenious

Reputation: 8653

You need to use the string returned by method ken(); like

System.out.println(ken());

Once a method returns something, you need to get hold of it to use it.

You can also use it like:

String returnValue = ken();
System.out.println(returnValue);

This will also yield same result.

Upvotes: 3

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