Java Program to Search Key Elements in an Array

«
»
This is a Java Program to Search Key Elements in an Array.

Enter the size of array and then enter all the elements of that array. Now enter the element you want to search for. With the help of for loop we can find out the location of the element easily.

Here is the source code of the Java Program to Search Key Elements in an Array. The Java program is successfully compiled and run on a Windows system. The program output is also shown below.

  1. import java.util.Scanner;
  2. public class Search_Element
  3. {
  4.     public static void main(String[] args) 
  5.     {
  6.         int n, x, flag = 0, i = 0;
  7.         Scanner s = new Scanner(System.in);
  8.         System.out.print("Enter no. of elements you want in array:");
  9.         n = s.nextInt();
  10.         int a[] = new int[n];
  11.         System.out.println("Enter all the elements:");
  12.         for(i = 0; i < n; i++)
  13.         {
  14.             a[i] = s.nextInt();
  15.         }
  16.         System.out.print("Enter the element you want to find:");
  17.         x = s.nextInt();
  18.         for(i = 0; i < n; i++)
  19.         {
  20.             if(a[i] == x)
  21.             {
  22.                 flag = 1;
  23.                 break;
  24.             }
  25.             else
  26.             {
  27.                 flag = 0;
  28.             }
  29.         }
  30.         if(flag == 1)
  31.         {
  32.             System.out.println("Element found at position:"+(i + 1));
  33.         }
  34.         else
  35.         {
  36.             System.out.println("Element not found");
  37.         }
  38.     }
  39. }

Output:

$ javac Search_Element.java
$ java Search_Element
 
Enter no. of elements you want in array:7
Enter all the elements:
2
4
1
5
7
6
9
Enter the element you want to find:5
Element found at position:4

Sanfoundry Global Education & Learning Series – 1000 Java Programs.

advertisement
advertisement

Here’s the list of Best Books in Java Programming, Data Structures and Algorithms.

advertisement
advertisement
Subscribe to our Newsletters (Subject-wise). Participate in the Sanfoundry Certification contest to get free Certificate of Merit. Join our social networks below and stay updated with latest contests, videos, internships and jobs!

Youtube | Telegram | LinkedIn | Instagram | Facebook | Twitter | Pinterest
Manish Bhojasia - Founder & CTO at Sanfoundry
Manish Bhojasia, a technology veteran with 20+ years @ Cisco & Wipro, is Founder and CTO at Sanfoundry. He lives in Bangalore, and focuses on development of Linux Kernel, SAN Technologies, Advanced C, Data Structures & Alogrithms. Stay connected with him at LinkedIn.

Subscribe to his free Masterclasses at Youtube & technical discussions at Telegram SanfoundryClasses.