Class

Java class assignment 2

Submitted by Deepali on Sat, 09/18/2010 - 13:23

Write a program which creates a class called circle. This class should have member variable called redius. Class should also have member method called calculateArea() which should calculate and display circle's area.

Create an object of this class and display it's area using calculateArea method.

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Java class assignment

Submitted by Deepali on Sat, 09/18/2010 - 13:22

Write a java program which creates a class called Person. The class should have three instance variables namely name, age and salary. These variable should of type String, int and float. Create new object of the class, set member variables and display them.

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How to call a constructor from another constructor within the class?

Submitted by Bharat on Sat, 09/04/2010 - 00:14

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Different constructor of the same class can be called using “this”. e.g.

public class Q1 {
 Q1(){
  System.out.println("Default Constructor");
 }
 
 Q1(String msg){
  this(); //calls default constructor
  System.out.println("One Argument Constructor");
 }
}

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Create a program to calculate factorial of a given number using recursion

Submitted by Rahimv on Mon, 08/23/2010 - 18:45

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import java.io.*;
 
class factorial
{
 long Factorial(int a)
 {
  if(a == 1)
   return 1;
  else 
   return(a*Factorial(a-1));
 }
}
 
class CalculateFactorial
{
 public static void main(String args[])
 {
  DataInputStream in = new DataInputStream(System.in);
  int number;
  long answer;
  
  try
  {
   factorial f1 = new factorial();

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Create a class which generates student merit list according to the percentage and total marks of three subjects

Submitted by Rahimv on Mon, 08/23/2010 - 18:38

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/*
 * Create a class which generates student merit list. Get number of students to enter followed by
 * details of each student and then display the student merit list according to the percentage and
 * total marks.
 */
 
import java.io.DataInputStream;
 
class Student
{
 int sno;
 String sname;
 int m[] = new int[3];
 int total;
 float percentage;
 
 void getdata()
 {

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Create a class called Student with number, name and marks of 3 subjects

Submitted by Rahimv on Mon, 08/23/2010 - 18:26

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/*
 * Create a class called Student with number, name and marks of 3 subjects. Get number of students
 * to enter followed by details of each student and then display the student with highest percentage.
 */
 
import java.io.*;
class Student
{
 int sno;
 String sname;
 int m[] = new int[3];
 int total;
 float percentage;
 
 void getdata()
 {