PowerPoint Presentation - From C++ to Java

Constructors

ĄGiven a class definition, Java provides a mechanism called new for creating new instances of the class.

ĄTo exploit the new, the class must provide a special method called a constructor that specifies how the fields of the created object are initialized.

ĄA constructor method has the same name as the class and does not contain the return type in the heading.

ĄExample:

Entry(String n, String a, String p) {

this.name = n;

this.address = a;

this.phone = p;

}

ĄIf a class does not include a constructor, Java provides a default constructor (of no arguments) that does nothing.