.: October 2011

Color example using Applet

import java.awt.*; import java.applet.*; public class Color1 extends Applet { public void paint (Graphics g) { Color Pigment; int Red; int Green; int Blue; ...

Program to demonstrate - toString()

class CD { String title; // name of the item int length; // number of minutes boolean avail; ...

Program to demonstrate inheritance (Example-2)

class Car { public String make; protected int weight; private String color; private Car(String make,int weight,String color) { ...

Program to demonstrate super() in java

class CD { String title; // name of the item int length; // number of minutes boolean avail; ...

Program to demonstrate super() in java

class CD { String title; // name of the item int length; // number of minutes boolean avail; ...

Program to demonstrate static variables, methods in java

class UseStaticMember { //static variable static int x=4; //static method static void display() { System.out.println("x : "+x); } } class StaticmemDemo2 { public static void main(String args[]) { System.out.println("x...

Program to demonstrate static variables in java

class StaticDemo1 { static int x=4; static int y; static void display(int a) { System.out.println("x : "+x); System.out.println("y : "+y); System.out.println("a : "+a); } static { System.out.println("Static block====="); y=x*x; } public static void...

Program to demonstrate Single inheritance

//Single inheritance //create a superclass class A { int a1; //public by default protected int a2; //protected to A ...

Program to demonstrate inheritance

//Simple example of inheritance //create a superclass class A { private int a; void showa() { System.out.println("a : "+a); } } //create...

Program to demonstrate movie database using Method overriding(Example-2))

//Method overriding class CD { String title; // name of the item int length; // number of minutes boolean avail; ...

Program to demonstrate movie database using Method overriding

Program to demonstrate movie database using Method overriding //Method overriding class CD { String title; // name of the item int length; ...

Program to demonstrate movie database

Program to demonstrate movie database class CD { private String title; // name of the item private int length; ...

Program to find which day of week today using Interface

Program to find which day of week today using Interface interface Week { int Monday=1; int Tuesday=2; int Wednesday=3; int Thursday=4; int Friday=5; int Saturday=6; int Sunday=7; } class Day implements Week { void display(int day) { switch(day) { case...

Program to find which day of week today using Interface

Program to find area of rectangle and circle using Interface

Program to find area of rectangle and circle using Interface interface Area //interface defined { float pi=3.14F; float compute(float x, float y); } class Rectangle implements Area { public float compute...

Program to find area of rectangle using Interface

Program to find area of rectangle using Interface interface Area //interface defined { float pi=3.14F; float compute(float x, float y); } class Rectangle implements Area { public float compute (float...

Program to demonstrate Students Marks using Interface

class student { int roll_number; void get_number(int a) { roll_number = a; ...

Program to demonstrate Interface in Java

Program to demonstrate Interface in Java interface NewShape { void draw(); } interface Circle extends NewShape { void getRadius(); int radious=10; } class NewCircle implements Circle { ...

Program to demonstrate Employee Informatiom by passing parameters in constructors of different class

Program to demonstrate Employee Informatiom by passing parameters in constructors of different class class staff { private int code; private String name; private String address; ...

Program to demonstrate Dynamic method dispatch

Program to demonstrate Dynamic method dispatch //Dynamic method dispatch class CD { void message() { System.out.println("Inside CD's method"); } } class Movie extends CD { //override message void message() { System.out.println("Inside...

Program to demonstrate Constructors

class CD { CD() { System.out.println("Inside CD's constructor"); } } class Movie extends CD { Movie() { System.out.println("Inside Movie's constructor"); } } class DocumentoryFilm extends Movie { DocumentoryFilm() { System.out.println("Inside DocumentoryFilm's...

Program to demonstrate Company Record of Person

Program to demonstrate Company Record of Person //super class class Person { protected String name; protected int code; Person(String n,int c) { ...

Program to demonstrate CD store

Program to demonstrate CD store class CD { String title; int length; boolean avail; CD(CD vt) { title=vt.title; length=vt.length; avail=vt.avail; } CD(String t, int l,boolean a) { title=t; length=l; avail=a; } CD() { title=null; length=0; avail=false; } } class...

Program to demonstrate Bank Account using Abstract class and Abstract method

Program to demonstrate Bank Account using Abstract class and Abstract method abstract class Account { protected int number; protected String name; ...

Program to demonstrate Abstract class and Abstract method

Program to demonstrate Abstract class and Abstract method abstract class Shape { protected double bs,ht,area; void getdata(double b, double h) { bs=b; ...

Program to demonstrate System.out.write()

/* Program to demonstrate System.out.write() */ class WriteDemo { public static void main(String args[ ]) { int i; char c ; float f;double d; ...

Program to read a string and rewrite it in alphabetical order

/* Program to read a string and rewrite it in alphabetical order */ import java.io.DataInputStream; // to load DataInputStream class class P27 { public...

Program to demonstrates the charAt( )

/* Program to demonstrates the - charAt( ) */ class charAtDemo { public static void main(String args[ ]) { String s = "INDIA"; char ch; ...

MCQ's on Java Fundamentals

1. Which is a valid keyword in java? A. interface B. Float C. string D. unsigned Click for answer A. interface 2. Which is a reserved word in the Java programming language? A. method B. array C. native D. reference D. subclasses Click...

Program to illustrate reading data from keyboard

Program to illustrate reading data from keyboard import java.io.DataInputStream; // load class for reading purpose class StringtoNumber { public static void main(String args[]) ...

Program to demonstrate static variables, methods, and blocks

/* Program to demonstrate static variables, methods, and blocks */ class StaticDemo1 { static int a = 5; static int b; static void display(int c) { ...

Program to Demonstrates- Returning an Object

/* Program to Demonstrates- Returning an Object */ class Rational { int numerator; int denominator; Rational(int a, int b) { numerator...

Program to demonsrates Recursion - Factorial of a given number

/* Program to demonsrates Recursion - Factorial of a given number */ class Factorial { int fact(int n) { int result; if(n==1) ...

Program to demonstrate Using Object as Parameters

/* Program to demonstrate ‘Using Object as Parameters’ */ class Rectangle { int length; int width; // Construct clone of an object Rectangle(Rectangle obj) ...

Program to demonstrate 'this' keyword

/* Program to demonstrate 'this' keyword */ class Rectangle { int length; int width; // use 'this' to resolve name-space collisions. Rectangle(int length ,int width) ...

Program to demonstrate Constructor overloading

/* Program to demonstrate Constructor overloading */ class Rectangle { int length; int width; // Constructor used when all values are specified Rectangle(int l,int...

Program to demonstrate parametrized Constructor

/* Program to demonstrate parametrized Constructor */ class Rectangle { int length; int width; // This is parameterized Constructor for Rectangle Rectangle(int l,int w) ...

Program to demonstrate Constructor

/* Program to demonstrate Constructor */ class Rectangle { int length; int width; // This is Constructor for Rectangle Rectangle() { ...

Program to demonstrate method that takes parameters

/* Program to demonstrate method that takes parameters */ class Rectangle { int length; int width; // compute and return Area of a Rectangle int area() { ...

Program to demonstrate Method returning a value

/* Program to demonstrate returning a value */ class Rectangle { int length; int width; // compute and return Area of a Rectangle int area() { ...

Program to demonstrate method

/* Program to demonstrate method */ class Rectangle { int length; int width; // display Area of a Rectangle void area() { ...

Program to demonstrate the use of other class

/* Program to demonstrate the use of other class. Call this file RectangleDemo1.java */ class Rectangle { int length; int width; } // This class declares an object of type Rectangle. class RectangleDemo1 { ...

Program to compute value of x1 and x2 of linear equations

Program to compute value of x1 and x2 of linear equations import java.io.DataInputStream; // to load DataInputStream class class LinearEq { public static...

Program to represent Bank Account- Using Constructor

Program to represent Bank Account- Using Constructor import java.io.DataInputStream; // to load DataInputStream class class Bank { String name,type; int acno,bal,wit,dep; ...

Program to represent Bank Account

Program to represent Bank Account import java.io.DataInputStream; // to load DataInputStream class class Bank { String name,type; int acno,bal,wit,dep; // To assign initial...

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