Android™ How to Program, Second Edition

Default Constructor

In this example, class Time1 does not declare a constructor, so the class has a default constructor that’s supplied by the compiler. Each instance variable implicitly receives the default value 0 for an int. Instance variables also can be initialized when they’re declared in the class body, using the same initialization syntax as with a local variable.

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 1   // Fig. F.1: Time1.java 2   // Time1 class declaration maintains the time in 24-hour format. 3  4   public class Time1 5   { 6      private int hour; // 0 - 23   7      private int minute; // 0 - 59  8      private int second; // 0 - 59  9 10      // set a new time value using universal time; throw an11      // exception if the hour, minute ...