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bala
constructor
1 Answer(s)      6 years and a month ago
Posted in : Java Beginners



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October 1, 2008 at 10:34 AM


Hi friend,


A java constructor has the same name as the name of the class to which it belongs. Constructor's syntax does not include a return type, since constructors never return a value.

Constructors may include parameters of various types. When the constructor is invoked using the new operator, the types must match those that are specified in the constructor definition.

Here is the code.


class Constract{
int x,y;
Constract(int a, int b){
x = a;
y = b;
}
Constract(){
}
int area(){
int ar = x*y;
return(ar);
}
}
public class ConstractorExam{
public static void main(String[] args){
Constract b = new Constract();
b.x = 4;
b.y = 5;
System.out.println("Area of rectangle : " + b.area());
System.out.println("Value of y in Constract class : " + b.y);
Constract a = new Constract(2,1);
a.x = 5;
a.y = 2;
System.out.println();
System.out.println("Area of rectangle : " + a.area());
System.out.println("Value of x in Constract class : " + a.x);
}
}


---------------------------------------

Visit for more information.

http://www.roseindia.net/java/example/java/io/SerializingObject.shtml


Thanks.

Amardeep


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