Introduction to Programming

return

The return statement can be placed only in a method or a constructor. Its function is to return control to the invoker with or without a value.

In the case of a constructor, the return statement is not required. If placed in the constructor, it has to be the last statement that returns no value:

class ConstructorDemo{  private int field;  public ConstructorDemo(int i) {    this.field = i;    return;  }}

 An attempt to place the return statement as not the last statement of a constructor or to make it return any value will result in a compilation error. 

In the case of a method, if the method was declared as returning some type:

• The return statement is required
• The return statement has to be effectively (see the following example) the last ...