Check if a value is present in an Array in Java

To write a Java program to check if a value is present in an Array or not.

  • Create an instance of the Scanner with the new keyword.
  • Specify the System.in as the argument for the Scanner constructor.
  • We create array class object and declare any number of size. like here we declare [5] means pass only 5 element.
  • From first for loop we execute multiple time at depend on array size which we declare and store input data in a[i] array.
  • From Second for loop we execute multiple time at depend on array size which we declare.
  • Here we compare search element with storing element. if it is true then break the loop.
  • Inside if condition, k==1 then value is present else not present.
				
					import java.util.Scanner;

public class ValuePresent {

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int a[] = new int[5];
		int k = 0;
		System.out.println("Enter the number of elements: ");
		int n = sc.nextInt();
		System.out.println("Enter the elements:");
		for (int i = 0; i < n; i++) {
			a[i] = sc.nextInt();

		}
		System.out.println("Enter the number to be searched:- ");
		int p = sc.nextInt();
		for (int j = 0; j < n; j++) {
			if (p == a[j]) {
				k = 1;
				break;
			}

		}
		if (k == 1) {
			System.out.println("The value "+ p + " is Present");
		} else
			System.out.println("The value "+ p + " is not Present");
	}
}

Output : –
Enter the number of elements:
4
Enter the elements:
1
2
3
4
Enter the number to be searched:-
3
The value 3 is Present