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Programs Questions and Answers



    301 / 348

    Write a Program to find the maximum element in an array of 10 elements.

    Input : NA


    Output : NA

    View Answer |  Array |  Discuss in Forum | Add to Reading List To Reading List | Asked In |  Fresher
    Answer In: C   JAVA  
     
    <p>#include <stdio.h></p>

    <p>int main()<br />
    {<br />
      Â  int arr[]={10,10,10,20,20,30,40};<br />
      Â  int n = sizeof(arr) / sizeof(arr[0]);<br />
      Â  int j=0;<br />
      Â  int temp[n];<br />
      Â  for(int i=0;i<n-1;i  ){<br />
      Â  Â  Â  if(arr[i]!=arr[i 1]){<br />
      Â  Â  Â  Â  Â  temp[j  ]=arr[i];<br />
      Â  Â  Â  }<br />
      Â  }<br />
      Â  temp[j  ]=arr[n-1];<br />
      Â  Â for(int i=0;i<j;i  ){<br />
      Â  Â  Â  Â printf("%d ",temp[i]);<br />
      Â  Â }<br />
    }</p>

    Tags:Virtusa

    302 / 348

    Write a program to find minimum and maximum of an array?

    Input : NA


    Output : NA

    View Answer |  Array |  Discuss in Forum | Add to Reading List To Reading List | Asked In |  Fresher
    Answer In: JAVA  
     
    import java.util.*;
    
    public class Maximum_Minimum 
    {
        public static void main(String args[])
        {
            int max,min;
            Scanner sc=new Scanner(System.in);
            System.out.println("Enter the size of the array: ");
            int n=sc.nextInt();
            int a[]=new int[n];    //declaring integer array with size n.
            System.out.println("Enter "+n+" numbers: ");
            for(int i=0;i<n;i++)
            {
                a[i]=sc.nextInt();
            }
            //initially assuming the max and min element at 0th index position.
            max=a[0];  
            min=a[0];
            for(int i=1;i<10;i++)
            {
                if(a[i]>max)
                {
                    max=a[i];   //if an element is larger than max, then update max with that value.
                }
                if(a[i]<min)
                {
                    min=a[i];   //if an element is smaller than min, then update min with that value.
                }
            }
            System.out.println("Largest element in the array is: "+max);
            System.out.println("Smallest element in the array is: "+min);
        }
    }

    Tags:Virtusa

    303 / 348

    Reverse a string without using any in-built string functions?

    Input : NA


    Output : NA

    View Answer |  Array |  Discuss in Forum | Add to Reading List To Reading List | Asked In |  Fresher
    Answer In: JAVA  
     
    <p>import java.io.*;<br />
    import java.util.*;<br />
    class ReverseString</p>

    <p>{</p>

    <p>public static void main(String args[])<br />
    {</p>

    <p>String original, reverse = "";</p>

    <p>Scanner in = new Scanner(System.in);</p>

    <p><br />
    System.out.println("Enter a string to reverse");</p>

    <p>original = in.nextLine();</p>

    <p><br />
    int length = original.length();</p>

    <p><br />
    for ( int i = length - 1 ; i >= 0 ; i-- )</p>

    <p>reverse = reverse   original.charAt(i);</p>

    <p><br />
    System.out.println("Reverse of entered string is: " reverse);</p>

    <p>}</p>

    <p>}</p>

    Tags:Virtusa

    304 / 348

    Write a program to find the average of 10 numbers?

    Input : NA


    Output : NA

    View Answer |  Basics |  Discuss in Forum | Add to Reading List To Reading List | Asked In |  Fresher
    Answer In: JAVA  
     
    import java.util.*;
    
    public class Average 
    {
        public static void main(String[] args)
        {    
            int sum=0;
            double avg=0.0;
            Scanner sc=new Scanner(System.in);
            int a[]=new int[10];    //initializing array with size 10.
            System.out.println("Enter 10 numbers: ");
            for(int i=0;i<10;i++)
            {
                a[i]=sc.nextInt();
            }
            for(int i=0;i<10;i++)
            {
                sum=sum+a[i];
            }
            System.out.println("Average is: "+(sum/10.0));
        }
    }

    Tags:Virtusa

    305 / 348

    Write a program to print alternate even numbers(2,6,10,14,18....).

    Input : NA


    Output : NA

    View Answer |  Basics |  Discuss in Forum | Add to Reading List To Reading List | Asked In |  Fresher
    Answer In: JAVA  
     
    import java.util.*;
    
    public class AlternateEven 
    {
        public static void main(String[] args)
        {    
            Scanner sc=new Scanner(System.in);
            System.out.println("Enter the range: ");
            int n=sc.nextInt();
            System.out.println("Alternate even numbers upto "+n+" are: ");
            for(int i=2;i<n;i+=4)
            {
                System.out.print(i+" ");
            }
        }
    }

    306 / 348

    Write a program for string reverse without using the reverse function.

    Input : NA


    Output : NA

    View Answer |  Strings |  Discuss in Forum | Add to Reading List To Reading List | Asked In |  Fresher
    Answer In: JAVA  
     
    import java.io.*;
    
    public class ReverseString 
    {
        public static void main(String[] args)throws IOException
        {    
            String str1="";
            BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
            System.out.println("Enter a String: ");
            String str=br.readLine();
            int len = str.length();
            for(int i=len-1;i>=0;i--)
            {
                char ch=str.charAt(i);
                str1=str1+ch;
            }
            System.out.println("Reverse string is: "+str1);
        }
    }

    Tags:No Tags on this question yet!

    307 / 348

    Write a program using sizeof and strlen.

    Input : NA


    Output : NA

    View Answer |  Basics |  Discuss in Forum | Add to Reading List To Reading List | Asked In |  Fresher
    Answer In: C  
     
    #include<stdio.h>
    
    #include<string.h>
    int main() 
    {
        char str[50];
        printf("\nEnter a string: ");
        scanf("%s",str);
        printf("\nSize of the string is: %d",sizeof(str));  //sizeof() operator gives the size in bytes.
        printf("\nLength of the string is: %d",strlen(str));    //strlen() function gives the length of the whole string.
        return 0;
    }

    308 / 348

    Get an IP address in char * and store it in uint32 variable and display with '.' symbol.

    Input : NA


    Output : NA

    View Answer |  Array |  Discuss in Forum | Add to Reading List To Reading List | Asked In |  Experience
    Answer In:
     No Discussion on this question yet!

    Tags:Cisco

    309 / 348

    Write a program using command line argument to input a word and check whether it is palindrome or not.

    Input : NA


    Output : NA

    View Answer |  Basics |  Discuss in Forum | Add to Reading List To Reading List | Asked In |  Fresher
    Answer In: C   JAVA  
     
    #include <stdio.h>
    #include <stdlib.h>
    #include <string.h>

    void isPalindrome(char str[])
    {
        int l = 0;
        int h = strlen(str) - 1;

        while (h > l)
        {
            if (str[l++] != str[h--])
            {
                printf("%s is Not Palindromen \r\n", str);
                return;
            }
        }
        printf("%s is palindromen\r\n", str);
    }

    int main(int argc, char * argv[])
    {
      if (argc == 1 || argc > 2)
      {
        printf("Enter String \r\n");
        exit(0);
      }

      isPalindrome(argv[1]);
    return 0;
             

    Tags:TCS

    310 / 348

    Write a C program which will check whether a given number N is prime or not. If the number N is prime, then find its square root and print that value to stdout as floating point number with exactly 2 decimal precision. If the given number N is not prime, then print the value 0.00 to stdout. The given number N will be a positive non Zero integer and it will be passed to the program using the first command line parameter. Other than the floating point result, no other information should be printed to stdout.

    Input : NA


    Output : NA

    View Answer |  Basics |  Discuss in Forum | Add to Reading List To Reading List | Asked In |  Fresher
    Answer In: C  
     
    #include <stdio.h>
    #include <math.h>
    #include <stdlib.h>

    int main(int argc, char * argv[])
    {
      int n, i, flag = 0;
      double x;

      if (argc == 1 || argc > 2)
      {
        printf("Enter String \r\n");
        exit(0);
      }

        n = atoi(argv[1]);
        x = n;
        for(i=2; i<= n/2; ++i)
        {
            if(n%i == 0)
            {
                flag=1;
                break;
            }
        }
        if (flag==0)
            printf("%.2lf \r\n", sqrt (x) );
        else
            printf("%.2lf \r\n",0.00);
    return 0;
    }

    Tags:TCS