Program for Hormonic series

Program
import java.io.*;
class HormonicSeries
{
    public static void main(String args[])
    {
        float s=0f;int n=0;
        try
        {

Program to Implement abstract class

import java.io.*;

import java.util.*;

abstract class Employee

{

            private String name;

            private int ssn;

            Employee(String s,int a)

            {

                        setname(s);

                        setssn(a);

                        getname();

                        getssn();

Program to Implement Multilevel Inheritance

import java.io.*;

class Point

{

            protected double x,y;

            Point(double a,double b)

            {

                        setpoint(a,b);

                        getx();

                        gety();

Program to Demonstrate switch case in Java

import java .io.*;

class switch

{

public static void main(Strings args[])

{

for (int i=o;i<4;i++)

{

switch(i)

{

case 0: if(i<1)

                        System.out.println(+i+”less than”+1);

            case 1: if(i<2)

                        System.out.println(+i+”less than”+2);

Program to Return the Object to main class in Java

     This program returns the object to the main class from the sub class.

import java.io.*;
class robject
{
int a;
robject(int x)
{

Program to implement final Keyword in Java

 This program is used to implement final variable. Final variable is constant variable which is unchanged. 

import java.io.*;
import java.util.*;
class increment
{
private int i;
private final int J;
increment()
{
J=2;  // final value

Program to Demonstrate Static & this Keyword

     This program is used to demonstrate static variable, static member and this keyword.

import java.io.*;

import java.util.*;

class Employee

{

            String fn,ln;

            static int count=0; 

            Employee( String s,String s1)

            {

Program to Implement Method Overloading in Java

     This is a program to implement method overloading which passes the integer,float,double variable as a argument.

import java.io.*;

import java.util.*;

class Method1

{

            void add(int a,int b)

            {

Program to Implement Constructor Overloading in Java

     This program is used to implement constructor overloading. Here the integer, float, double variable and object is passed as arguments.

 

import java.io.*;

import java.util.*;

class Box1

{

            int wt,ht,dt,a;

            float wt1,ht1,dt1,a2;

            double wt2,ht2,dt2,a3;

            Box1()

Program to Implement Stack in Java

    This program is used to demonstrate the Stack operations PUSH & POP with the help of Switch an if statements.


import java.io.*;

import java.util.*;

class Stack

{

    int a[]=new int[10];

    int top=0;

    Stack()

Program to demonstrate the Switch case and If statement

This a Program to demonstrate the Switch case and If statement by calculating the discount amount of a cloth products

Program:

 

import java.io.*;

import java.util.*;

class Cloth1

{

void purchase()

                {

                Scanner s=new  Scanner(System.in);

                System.out.println("What do  you want to Purchase? \n 1)Mill Cloth \n 2)Handloom Cloth \n 3)Exit");

Program to Implement Number Pattern in Java

class Pattern

{

                public static void main(String args[])

                {

                                int twod[][]=new int[4][];

                                twod[0]=new int[1];

                                twod[1]=new int[2];

                                twod[2]=new int[3];

                                twod[3]=new int[4];

Program to Implement Library Funtions in Java

import java.io.*;

import java.math.*;

class three

{

                public static void main(String args[])

                {

                                System.out.println("Square Root of 44 is "+Math.sqrt(44));

                                System.out.println("Sin of 90 is "+Math.sin(90));

                                System.out.println("Cos of 0 is "+Math.cos(0));

                                System.out.println("Tan of 45 is "+Math.tan(45));

Program for Type Conversion in Java

import java.io.*;
class Typeconversion
{
    public static void main(String args[])
    {
        double i;
        float sum1=0.0f,sum=0.0f;
        for(i=1;i<=20;i++)
        {
            sum1=(float)i;
            sum+=(1/sum1);

Program for Escape Sequence in Java

import java.io.*;
class Escape
{
    public static void main(String args[])
    {
        System.out.println("P    Q    P&Q    P|Q      P^Q");
        int i,x,y,z;
        int p[]={0,0,1,1};
        int q[]={0,1,0,1};
        for(i=0;i<4;i++)

Program for Gallons to Liter Conversion in java

import java.io.*;
class Conversion
{
    public static void main(String args[])
    {
        double ans;
        for(int i=1;i<=20;i++)
        {
            ans=i*3.84;

Program for Display Alphabets & Sorted Numbers in Java

import java.io.*;
class Alpha
{
    public static void main(String args[])
    {
        String s[]={"A","B","C","D","E","F","G","H","I","J","K","L","M","N","O","P","Q","R","S","T","U","V","W","X","Y","Z"};
        int n=s.length;
        for(int i=0;i<n;i++)
        {
            System.out.print(s[i]);
        }
        int s1[]={1,54,26,8,32,65};
        int n1=s1.length;