This Java program detects duplicate elements in an array entered by the user. It takes input for the array size and elements, then checks for duplicate values using nested loops. Ideal for beginners ...

The use of the Java Streams API to find duplicates. The use of the frequency method in Java’s Collections class. Brute-force Java duplicate finder A brute-force approach to solve this problem involves ...

We check the condition again. Consider the numbers from 1 to n, which happens to be one duplicate element and one missing element. There must be something strange about things going wrong. We must ...