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CreativeeBlackWolf

javalab1

Sep 28th, 2022
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Java 0.85 KB | None | 0 0
  1. import java.util.Scanner;
  2. import java.util.Random;
  3. import java.util.Arrays; // convert arrays to string
  4. import java.util.HashSet;
  5.  
  6. public class Lab {
  7.  
  8.     public static void main(String[] args) {
  9.         Scanner scan = new Scanner(System.in);
  10.         Random random = new Random();
  11.        
  12.         System.out.print("Enter amount of numbers in array: ");
  13.         int amountOfNumbers = scan.nextInt();
  14.        
  15.         int[] array = new int[amountOfNumbers];
  16.         HashSet<Integer> set = new HashSet<Integer>();
  17.        
  18.         for (int i = 0; i < amountOfNumbers; i++) {
  19.             array[i] = random.nextInt(50); // Randomly fill the array
  20.             // OR
  21. //          array[i] = scan.nextInt(); // Enter integers manually
  22.         }
  23.        
  24.         System.out.println("Array: " + Arrays.toString(array));
  25.         System.out.print("Duplicates: ");
  26.        
  27.         for (int num : array) {
  28.             if (set.add(num) == false)
  29.                 System.out.print(num + " ");
  30.         }
  31.     }
  32.  
  33. }
  34.  
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