Programming Examples

Java program to accept n elements in array and find the frequency of any elements


Write a java program which accept n integer number in array and find the frequency of any input element.

Solution:

import java.util.*;
class Frequency
{
    public static void main(String arr[])
    {
        Scanner sc=new Scanner(System.in);        
        System.out.println("Enter the size of Array : ");
        int n=sc.nextInt();
        int num[]=new int[n];        
        int count=0;
        System.out.println("Enter the "+n+" Elements of Array");
        for(int i=0;i<n;i++)
        {
            num[i]=sc.nextInt();
        }
        System.out.println("Enter any number for Search : ");
        int ch=sc.nextInt();
        for(int i=0;i<n;i++)
        {
            if(num[i]==ch)
            {
                count++;            
            }                     
        }        
        if(count>0)
        {
            System.out.println("Element Found "+count+" Time");
        }
        else
        {
             System.out.println("Element Not Found in array");
        }
    }
}
Output

Enter the size of Array : 

5

Enter the 5 Elements of Array

22

11

22

23

22

Enter any number for Search : 

22

Element Found 3 Time

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