Using Return

When we call a method, we can use its return value by assigning it to a variable.

public static void ultimateQuestion() {
  int answer = getAnswer();
}

public static int getAnswer() {
  return 42;
}

The value 42 is returned from getAnswer and assigned to the variable answer.

Using Return Value

Drill¶

Methods/src/drills/CalculateBalanceReturn.java We are going to refactor the CalculateBalance class into more methods. * Declare a method called buildHeader that returns a String. * This method will return a String for the "BALANCE" header. Use the following code.

public static String buildHeader() {
  String header = "/////////////////\n"
                + "//// BALANCE ////\n"
                + "/////////////////";
  return header;
}

* "Refactor" printHeader() to use buildHeader(): 1. Remove its System.out.println statements. 2. Inside printHeader, call buildHeader() and assign its return value to a variable. 3. Output that variable to the screen.

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