Write a program to sort existing array?

♣♣♣ WRITE A PROGRAM TO SORT EXISTING ARRAY. ♣♣♣

import java.io.*;

class pro7

{

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

            {

            int cnt,last,i,j,temp;

            int arr[]=new int[10];

            InputStreamReader a=new InputStreamReader(System.in);

            BufferedReader b=new BufferedReader(a);

            System.out.print("Enter the total number of array : ");

            last=Integer.parseInt(b.readLine());

                        for(cnt=0;cnt

                        {         

                        System.out.print("Enter element"+(cnt+1)+" : ");

                        arr[cnt]=Integer.parseInt(b.readLine());        

                        }

                        for(i=1;i<=last;i++)

                        {

                                    for(j=1;j<=last;j++)

                                    {

                                                if(arr[j-1]

                                                {

                                                temp=arr[j-1];

                                                arr[j-1]=arr[j];

                                                arr[j]=temp;

                                                }

                                    }

                        }

                        System.out.println("Array after sorting is :");

                        for(cnt=0;cnt

                        {

                        System.out.print(arr[cnt]+"   ");         

                        }         

            }

}

OUTPUT :-

            Enter the total number of array : 5

Enter Element1 :23

Enter Element2 :12

Enter Element3 :45

Enter Element4 :33

Enter Element5 :21

Array after sorting is :

            45        33        23        21        12

Write a program to insert element in existing array.?

♣♣♣ WRITE A PROGRAM TO INSERT ELEMENT IN EXISTING ARRAY. ♣♣♣

import java.io.*;

class pro6

{

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

            {

            int cnt,last,pos,num;

            int arr[]=new int[10];

            int newarr[]=new int[10];

            InputStreamReader a=new InputStreamReader(System.in);

            BufferedReader b=new BufferedReader(a);

            System.out.print("Enter the total number of array : ");

            last=Integer.parseInt(b.readLine());

                        for(cnt=0;cnt

                        {         

                        System.out.print("Enter element"+(cnt+1)+" : ");

                        arr[cnt]=Integer.parseInt(b.readLine());        

                        }

                     System.out.print("Enter the position to insert new element in an existing array :");

                        pos=Integer.parseInt(b.readLine());

                        System.out.print("Enter the element : ");

                        num=Integer.parseInt(b.readLine());

                        for(cnt=0;cnt

                        {         

                                    if(cnt+1==pos)

                                    newarr[cnt]=num;

                                    else

                                    newarr[cnt]=arr[cnt];

                        }

                        System.out.println("Array after inserting new element is :");

                        for(cnt=0;cnt

                        {

                        System.out.print(newarr[cnt]+"   ");  

                        }         

            }

}

OUTPUT :-

            Enter the total number of array : 5

Enter Element1 :23

Enter Element2 :12

Enter Element3 :45

Enter Element4 :33

Enter Element5 :21

Enter the position to insert new element in an existing array :2

Enter the element : 88

Array after inserting new element is :

            23        88        45        33        21

Write a program to display al?l prime numbers between 1 to 1000.

♣♣♣ WRITE A PROGRAM TO DISPLAY ALL PRIME NUMBERS BETWEEN 1 TO 1000. ♣♣♣

import java.io.*;

class pro5

{

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

            {

            int num,cnt,last,flg;

            InputStreamReader a=new InputStreamReader(System.in);

            BufferedReader b=new BufferedReader(a);

            System.out.print("Enter the last number of range: ");

            last=Integer.parseInt(b.readLine());

            System.out.print("List of all Prime Number upto "+last+" : \n");

                        for(num=1;num<=last;num++)

                        {

                        flg=1;

                                    for(cnt=2;cnt<=num/2;cnt++)

                                    {         

                                                if(num%cnt==0)

                                                {

                                                flg=0;

                                                break;

                                                }

                                    }

                        if(flg==1)

                        System.out.print(num+"   ");

                        }

            }

}

  

OUTPUT :-

            Enter the last number of range: 50

List of all Prime Number upto 50:

            1          2          3          5          7          11        13        17        19        23

           29         31        37       41       43          47

WRITE A PROGRAM TO DISPLAY MULTIPLICATION TABLE.?

♣♣♣ WRITE A PROGRAM TO DISPLAY MULTIPLICATION TABLE. ♣♣♣

import java.io.*;

class pro4

{

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

            {

            int num,cnt,sum;

            InputStreamReader a=new InputStreamReader(System.in);

            BufferedReader b=new BufferedReader(a);

            System.out.print("Enter any number : ");

            num=Integer.parseInt(b.readLine());

                        for(cnt=1;cnt<=10;cnt++)

                        {

                        sum=num*cnt;

                        System.out.println(num+" * "+cnt+" = "+ sum);

                        }

            }

}

  

OUTPUT :-

            Enter any number : 3

            3  *  1  =  3

3  *  2  =  6

            3  *  3  =  9

            3  *  4  =  12

            3  *  5  =  15

3  *  6  =  18

            3  *  7  =  21

            3  *  8  =  24

            3  *  9  =  27

3  *  10  =  30

WRITE A PROGRAM TO FIND THE SUM OF DIGITS OF A GIVEN NUMBER.?

♣♣ WRITE A PROGRAM TO FIND THE SUM OF DIGITS OF A GIVEN NUMBER. ♣♣

import java.io.*;

class pro3

{

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

            {

            int num,rem,sum=0;

            InputStreamReader a=new InputStreamReader(System.in);

            BufferedReader b=new BufferedReader(a);

            System.out.print("Enter any numeric number : ");

            num=Integer.parseInt(b.readLine());

                        while(num!=0)

                        {

                        rem=num%10;

                        sum=sum+rem;

                        num=num/10;

                        }

            System.out.print("Sum of Number= "+ sum);

            }

}

OUTPUT :-

            Enter any numeric  number : 4652

            Sum of Number = 17

Write a program to reverse the string.?

♣♣♣ WRITE A PROGRAM TO REVERSE THE STRING. ♣♣♣

import java.io.*;

class pro2

{

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

            {

            String s1;

            InputStreamReader a=new InputStreamReader(System.in);

            BufferedReader b=new BufferedReader(a);

            System.out.print("Enter any string : ");

            s1=b.readLine();

            int cnt=s1.length();

            System.out.println("Real String = "+s1);

            System.out.print("Reverse String= ");

            while(cnt>0)

            {

                        System.out.print(s1.charAt(cnt-1));

                          cnt--;

              }

              System.out.println();

            }

}

OUTPUT :-

            Enter any string : KAPIL

            Real String = KAPIL

            Reverse String = LIPAK

Write a program to check whether two strings are equal or not. ?

♣♣♣ WRITE A PROGRAM TO CHECK WHETHER TWO STRINGS ARE EQUAL OR    
NOT. ♣♣♣                            

import java.io.*;

class pro1

{

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

            {

            String s1,s2;

            InputStreamReader a=new InputStreamReader(System.in);

            BufferedReader b=new BufferedReader(a);

            System.out.print("Enter First string : ");

            s1=b.readLine();

            System.out.print("Enter Second string : ");

            s2=b.readLine();

                        if(s1.equals(s2))

                        System.out.print("Equal");

                        else

                        System.out.print("Not Equal");

            }

}

OUTPUT :-

            Enter first string : My Name is Kapil

            Enter Second string : My  Name  is Kamia

            Not Equal

            Enter first string : My Name is Kapil

            Enter Second string : My Name is Kapil

            Equal