Write a program to Print Unique Elements in Array

This is a Java program that takes an integer array input from the user and prints out the unique elements of the array. Here is a brief explanation of the code:

The program first imports the Scanner class from the java.util package to read input from the user.
The program defines a static method called getUnique that takes an integer array a and its length n as input.
The getUnique method uses nested loops to compare each element of the array with all previous elements to check if it is unique. If an element is found to be a duplicate, the inner loop breaks and moves to the next element.
If the element is not found to be a duplicate, it is printed to the console.
The main method first reads the length of the array from the user and creates an array of that size.
It then prompts the user to enter the elements of the array and stores them in the array using a for loop.
Finally, the main method calls the getUnique method to print out the unique elements of the array.

Source Code

import java.util.Scanner;
public class Array_Unique_Element
{
	static void getUnique(int a[], int n)
	{
		for (int i = 0; i < n; i++)
		{
			int j;
			for (j = 0; j < i; j++)
			if (a[i] == a[j])
				break;
			if (i == j)
			System.out.print( a[i] + " ");
		}
	}	
	public static void main (String[] args)
	{
		Scanner input =new Scanner(System.in);
		System.out.print("Enter the Array Limit :");
		int l =input.nextInt();
		int [] a =new int[l];
        for(int i=0;i<l;i++)
        {
            System.out.printf("Element of a[%d] :",i);
            a[i]=input.nextInt();
        }
		System.out.println("\nDisplay Array Unique Elements...\n");
		getUnique(a, l);
 
	}
}

Output

Enter the Array Limit :5
Element of a[0] :10
Element of a[1] :20
Element of a[2] :40
Element of a[3] :10
Element of a[4] :20

Display Array Unique Elements...

10 20 40

Write a program to Print Unique Elements in Array

Source Code

Output

Example Programs

Array Programs in Java