Java program to illustrate method overloading

class area

{

  int l,b,r;

  float s;

  void sample(int l,int b)

  {

   s=b*l;

   System.out.println("area of rectangle="+s);

  }

  void sample(int r)

   {

    s=r*r;

    System.out.println("area of square="+s);

   }

  public static void main(String s[])

   {

     area a=new area();

     a.sample(5,3);

     a.sample(6);

   }

}

Output

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Java program to find reverse of a number

import java.io.*;

class reverse

{

  int num,temp,p;

  reverse(int a)

  {num=a;

    temp=num;

    p=0;}

  void findreverse()

   { while(temp>0)

        {p=p*10+temp%10;

          temp/=10;}

    System.out.println("Reverse of "+num+" is "+p);

  }

  public static void main(String s[])throws IOException

  {

    BufferedReader br=new BufferedReader(new InputStreamReader(System.in));

    System.out.println("Enter the number to reverse");

    int n=Integer.parseInt(br.readLine());

    reverse r=new reverse(n);

    r.findreverse();

  }

}

Output

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Java program to print amstrong numbers upto given number

import java.io.*;

class strangenum

{int num,temp,d,s;

  strangenum(int a)

  { num=a;}

  void gen_strange()

  { System.out.println("strnge numbers are");

       for(int i=0;i<=num;i++)

        {temp=i;

          s=0;

          while(temp>0)

          { d=temp%10;

             s+=d*d*d;

             temp/=10; }

      if(s==i)

        System.out.println(i); }

  }

  public static void main(String s[])throws IOException

  { BufferedReader br=new BufferedReader(new InputStreamReader(System.in));

     System.out.println("Enter the limit");

     int a=Integer.parseInt(br.readLine());

     strangenum st=new strangenum(a);

     st.gen_strange();}

}

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Program to perform the addition of complex numbers

#include<iostream.h>
#include<conio.h>
class comp
{ private:
int r,i;
public:
void get();
void disp(comp,comp);
comp();
};
comp::comp()
{
r=0;
i=0;
}
void comp::get()

{
cout<<"\n\nEnter a complex number :-";
cout<<"\n\n\nEnter real part :\t";
cin>>r;
cout<<"\n\n\nEnter imaginary part:\t";
cin>>i;
cout<<"\n\n\nComlex number you entered :\t"<<r<<"+"<<i<<"i";
}
void comp::disp(comp a1,comp a2)
{
comp c;
c.r=a1.r+a2.r;

c.i=a1.i+a2.i;
cout<<"\n\n\n---------------------------------\n\n\nSum of the given complex numbers ="<<c.r<<"+"<<c.i<<"i";
}
void main()
{ clrscr();
comp a1,a2;
a1.get();
a2.get();
a1.disp(a1,a2);
getch();
}


Sample input and output

Enter a complex number
Enter real part:2
Enter imaginary part:3
Enter a complex number
Enter real part:1
Enter imaginary part:3
Sum of the given complex numbers =3+6i

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Java program to find sum of the elements of an array

class arraysum
       {
int a[],sum;
arraysum()
    {
a= new int[12];
sum=0;
for(int i=0;i<12;i++)
    {
a[i]=i+1;
    }
  }
void add()
 {
for(int i=0;i<12;i++)
    {
sum=sum+a[i];
     }
System.out.println("\t"+"sum of elements of array is "+sum);
 }

void disp()
{
for(int i=0;i<12;i++)
{
System.out.println(i+" ");
}
}

public static void main(String s[])
 {
arraysum as = new arraysum();
as.disp();
as.add();
 }

       }

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Program using C to calculate Electricity Bill with if-else condition

Conditions      

                <=100 Rs.4/units

                 > 100 and <=300 Rs.4.50/units

                 >300 and <=500 Rs.4.75/units

                 >500 Rs.5/units

Program

#include<stdio.h>

#include<conio.h>

void main ()

{

  int unit, tot;

  clrscr ();

  printf("Enter Total Units:");

  scanf ("%d", &unit);

   if (unit<=100)

     {

      tot=unit*4;

     }

   else if (unit>100 && unit<=300)

     {

      tot=unit*4.5;

     }

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Multiplication Table Using C

#include <stdio.h>

#include <conio.h>

 void main()

{

   Int i,n,num;

  clrscr();

  printf(“Enter the number to print multiplication table :”);

  scanf(“%d”,&num);

  printf(“how many terms :”);

  scanf(“%d”,&n);

  clrscr();

  printf(“======MULTIPLICATION TABLE=======\n             ”);

  for(i=1;i<=n;i++);

  printf(“%d*%d=%3d”,i,num,i*num);

  getch();

}

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C program to display perfect,abudent,and deficiant numbers

#include<conio.h>

#include<stdio.h>

#include<iostream.h>

#include<math.h>

int test(int n);

void main()

{

int i,lower,upper,temp;

clrscr();

printf("Enter the range\n");

printf("\tLower Bound?");

scanf("%d",&lower);

printf("\tUpper Bound?");

scanf("%d",&upper);

if(lower>upper)

{  

temp=lower;

lower=upper;

upper=temp;

}

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Program To search a number in a set of numbers using C

#include<stdio.h>
#include<conio.h>
void main()
{
int  i,n,count=0;
float num[50],search;
clrscr();
printf("how many numbers ?");
scanf("%d",&n);
if(n<=0)
printf("invalid data");
else
{
for(i=0;i<n;i++)
{
printf("Enter the number-%d:",i+1);
scanf("%f",&num[i]);
}
printf("\n\n\nNumber to searched ? ");
scanf("%f",&search);
clrscr();

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To Display The Sum Of 1!+2!+3!+.......+n! using C

#include<stdio.h>
#include<conio.h>
double fact(int n);
void main()
{
int n,i;
double sum=0.0;
clrscr();
printf("Up To Which Term ?");
scanf("%d",&n);
for(i=1;i<=n;++i)
sum+=fact(i);
printf("Sum Of The Factorials Of The Numbers Up To %d Is %g",n,sum);
getch();
}
double fact(int n)
{

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Factorial of a number using c

#include<stdio.h>
void main()
{
int i,n,fact=1;
clrscr();
printf("Enter the number : ");
scanf("%d",&n);
for(i=1;i<=n;i++)
 {
  fact=fact*i;
 }
  printf("%d",fact);
getch();
}

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Program to accept an amount in rupees and display the number of currency notes

#include <stdio.h>

#include<conio.h>

 void main()

        {

            int amt,t,n1,n2,n3,n4,n5,n6,n7,n8,n9,total;

            printf("\n Enter the amount");

            scanf("%d",&amt);

            t=amt;

            n1=amt/1000;

           amt=amt%1000;

           n2=amt/500;

           amt=amt%500;

           n3=amt/100;

           amt=amt%100;

           n4=amt/50;

           amt=amt%50;

           n5=amt/20;

           amt=amt%20;

           n6=amt/10;

           amt=amt%10;

           n7=amt/5;

           amt=amt%5;

           n8=amt/2;

          n9=amt%2;

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To generate pattern 333 22 1

#include<stdio.h>

void main()
{
int i,j,n;
clrscr();
printf("how many lines you need to print :");
scanf("%d",&n);
for(i=n;i>0;i--)
   {
   for(j=0;j<i;j++)
      {
      printf("%d",i);
      }
    printf("\n");
   }
getch();
}

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To generate pattern 1 12 123

#include<stdio.h>

void main()
{
int i,j,n;
clrscr();
printf("how many lines you need to print :");
scanf("%d",&n);
for(i=0;i<n;i++)
   {
   for(j=0;j<=i;j++)
      {
      printf("%d",j+1);
      }
    printf("\n");
   }
getch();
}

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To generate pattern 321 21 1

#include<stdio.h>

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To generate pattern * ** ***

#include<stdio.h>

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To generate pattern*** ** *

#include<stdio.h>

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To generate pattern 1 12 123

#include<stdio.h>

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Number in reverse

#include<stdio.h>

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Sum of individual digits of a number

#include<stdio.h>

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