jGuru: Help: Defining and Using Java Methods

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Task 1

Define a method called sayHello() in class Methodcall, provided in the skeleton code, that has no arguments and no return value. Make the body of the method simply print "Hello."

The signature of this method is:

  public void sayHello();

Task 2

Make the start() method of Methodcall call sayHello().

Add this code:

sayHello();

Task 3

Define a method called addTwo() that takes an integer argument, adds 2 to it, and returns that result.

Use an int, not an Integer

Task 4

In the start() method of Methodcall, define a local integer variable and initialize it to the result of calling addTwo(3). Print out the variable; that is, print out the result of the method call. Define another local integer variable initialize it to the result of calling addTwo(19). Print out its result.

To print out a value:

System.out.println("msg");

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