How to return a char value from one method to another?

Question

This is what I have...

{
   public static void main(String[] args)
   {
      //variable declaration
      char letter;

      getLetter();

      letter = "";
      System.out.println(letter)
   }

   public static int getLetter()
   {
      String text;
      char letter;

      text = JOptionPane.showInputDialog("Enter a letter.");
      letter = text.charAt(0);

      System.out.println(letter);

      return letter;
   }
}

I want to get the letter the user inputs from the method getLetter and transfer it in the main method where I can display it on the screen. What am I doing wrong here?

Answer 1

The getLetter() method should return type char not int . This is because you have assigned the local variable letter as type char .

Also, methods are called by method(); not '(method)' .

Try out the following code:

public class YourClass {
  public static void main(String[] args) {
    //variable declaration
    char letter;
    letter = getLetter();
    System.out.println(letter);
  }

  public static char getLetter() {
    String text;
    char letter;

    text = JOptionPane.showInputDialog("Enter a letter.");
    letter = text.charAt(0);

  System.out.println(letter);
  return letter;
  }
}

Answer 2

The return type for your method is an int, but you're returning a character. Your method invocation is incorrect as well; it should be:

 letter = getLetter(); // follows the same format as the declaration.

You should make use of the Java Tutorials, they can be found here: http://docs.oracle.com/javase/tutorial/