Introducing Method
In java programming language c lass usually consist of two things instance variable and methods.
Method are the block of statement that perform a special task.
Using methods we can avoid the rewriting the same code over and over in a sane program.
Method increase the efficiency and reduce the complexity of the program.
Syntax of Method Definition
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accessModifier returnType methodName(){ statements; } |
Write a program to demonstrate method in class.
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class RectangleArea { int length; int width; void area() { // method area() definition length = 10; // within class variables access without object width = 20; int a = length * width; System.out.println("Area of the rectangle =" + a); } } public class TestRectangle { public static void main(String arg[]) { RectangleArea obj1 = new RectangleArea(); obj1.area();// call area() method } } |
Result
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Area of the rectangle =200 |
Parameterized(overloaded) Method
Write a program to demonstrate parameterized method in class.
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class RectangleArea { int length; int width; void area(int i, int j) { // method area() definition length = i; // within class variables access without object width = j; int a = length * width; System.out.println("Area of the rectangle =" + a); } } public class TestRectangle1 { public static void main(String arg[]) { RectangleArea obj1 = new RectangleArea(); obj1.area(10, 20);// call area() method and pass value of argyments } } |
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Area of the rectangle =200 |