Page 357 - CITS - Computer Software Application -TT

COMPUTER SOFTWARE APPLICATION - CITS

• changing the number of arguments.

• or changing the data type of arguments.
• It is not method overloading if we only change the return type of methods. There must be differences in the
number of parameters.

Constructors and Overloaded constructors

Java Constructors
A constructor in Java is similar to a method that is invoked when an object of the class is created.
Unlike Java methods, a constructor has the same name as that of the class and does not have any return type.
For example,
class Test {
Test() {
// constructor body
}

}
Example: Java Constructor
class Main {
private String name;

// constructor
Main() {
System.out.println(“Constructor Called:”);
name = “Programiz”;

}
public static void main(String[] args) {
// constructor is invoked while
// creating an object of the Main class
Main obj = new Main();

System.out.println(“The name is “ + obj.name);
}
}
Output:
Constructor Called:

The name is Programiz
Types of Constructor
In Java, constructors can be divided into three types:
1 No-Arg Constructor

2 Parameterized Constructor
3 Default Constructor

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CITS : IT&ITES - Computer Software Application - Lesson 94 - 100