Chapter

Constructors

From ComputerScienceOne by Dr Chris Bourke

Concepts

1. What is a constructor and how is it written?

   "A constructor is a special method that specifies how an object is constructed. With built-in primitive variables such as an int, the Java language (compiler and JVM) “know” how to interpret and assig

2. How does Java handle default and multiple constructors?

   "Java allows us to define multiple constructors, or even no constructor at all. If we do not specify a constructor, Java provides a default, no argument constructor. This constructor uses default valu

3. How can constructors call one another and copy objects?

   "In both of these examples, we repeated a lot of code. One shortcut is to make all your constructors call the most general constructor. To invoke another constructor, we use the this keyword as a meth