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1. www.geeksforgeeks.org › java-program-to-removeJava Program to Remove Duplicate Elements From the Array

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   • (Using extra space) Create a temporary array temp[] to store unique elements. Traverse input array and copy all the unique elements of a[] to temp[].
   • (Constant extra space) Implementation: Just maintain a separate index for the same array as maintained for different array in Method 1. Java. public class Main {
   • Using Set. This method can be used even if the array is not sorted. Approach: Take a Set. Insert all array elements in the Set. Set does not allow duplicates and sets like LinkedHashSet maintains the order of insertion so it will remove duplicates and elements will be printed in the same order in which it is inserted.
   • Using Frequency array. We can use the frequency array if the range of the number in the array is limited, or we can also use a set or map interface to remove duplicates if the range of numbers in the array is too large.

2. www.javatpoint.com › java-program-to-removeJava Program to remove duplicate element in an Array

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   Learn how to remove duplicate elements in an array using temporary array or separate index. See examples of sorted and unsorted arrays and the output of the program.

3. stackoverflow.com › questions › 22352934Remove duplicates from an array in Java - Stack Overflow

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   Put all the array values in a set and then convert back to array. Set<Integer> numbersSet = new HashSet<>(Arrays.asList(numbers)); Integer[] uniqueNumbers = numbersSet.toArray(new Integer[0]); Set will eliminate all you duplicates and you don't need to do anything for it. Just put the numbers there.

4. www.knowprogram.com › java › remove-duplicates-inRemove Duplicates From Array in Java - Know Program

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   • Using Loops
   • Remove Duplicates from Array in Java Using Set Collection
   • Remove Duplicates from An Array Using Java 8 Stream
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   Let us discuss how to remove duplicates from sorted and unsorted array using loops. Here, we won’t use any temporary array, we will use seperate index. Java program to remove duplicates from sorted array In sorted array, removing duplicate elements is easy compared to the unsorted array. In the sorted array, next element can be either equal or grea...

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   Using Java collections also we can remove the duplicate from array. The set collection can store only unique values, therefore in this program we will iterate to the array and try to insert all elements in the set collection. After inserting set will be converted to the array and it is returned to the caller method. Output:- Original array: [30, 50...

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   We can also use the stream to remove the duplicates from a given array. Output:- Original array: [30, 50, 20, 50, 10, 20, 30, 10, 10, 40] After removing duplicates: [30, 50, 20, 10, 40] If you want to get both unique elements along with the duplicate elements then we can do it as follows:- If you enjoyed this post, share it with your friends. Do yo...

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   Learn how to remove duplicates from sorted and unsorted arrays in Java using loops, sets, or streams. See examples, code, and output for each method.

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5. www.geeksforgeeks.org › remove-duplicates-sorted-arrayRemove duplicates from Sorted Array - GeeksforGeeks

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   May 30, 2024 · Learn how to remove duplicate elements from a sorted array in Java using different approaches. Compare the time and space complexity, code examples and output of each method.

6. www.javaguides.net › 2018 › 08Java Program to Remove Duplicate Elements in an Array

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   Learn how to write a Java program to remove duplicate integer elements in an array using temp array or hash set. See the code, output and explanation for both methods.

7. People also ask

   How to remove duplicate element in an array?

   • We can remove duplicate element in an array by 2 ways: using temporary array or using separate index. To remove the duplicate element from array, the array must be in sorted order. If array is not sorted, you can sort it by calling Arrays.sort (arr) method. If you have unsorted array, you need to sort it first.

   Java Program to remove duplicate element in an Array

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   How to remove duplicates from sorted array in Java?

   • Java program to remove duplicates from sorted array In sorted array, removing duplicate elements is easy compared to the unsorted array. In the sorted array, next element can be either equal or greater/lesser (greater if array is sorted in ascending order, else lesser). If both are equal then ignore it else perform the operation.

   Remove Duplicates From Array in Java - Know Program

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   How to remove duplicates from an input array?

   • By using set to remove duplicates from an input array and update the array with unique elements and finally return the count of unique elements. Use set to collect unique elements from the array. Updates the array with unique elements, modifying the size. Prints the modified array, now containing only unique elements. Time Complexity: O (N)

   Remove duplicates from Sorted Array - GeeksforGeeks

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   How to check if an array is duplicate?

   • Examples: Explanation: All the elements are 2, So only keep one instance of 2. Try It! Naive Approach (Using extra space): The idea to solve the problem is to Create a new array and store the unique elements in the new array. For checking duplicate elements, just check two adjacent elements are equal or not because the array is sorted.

   Remove duplicates from Sorted Array - GeeksforGeeks

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   How to remove duplicates in Java?

   • Using a Set is a straightforward way to remove duplicates because sets inherently do not allow duplicate elements. This approach is simple and efficient. import java.util.LinkedHashSet; import java.util.Set; public class RemoveDuplicatesUsingSet { public static void main(Stringargs) { Integerarray = { 1, 2, 2, 3, 4, 4, 5 };

   Java Program to Remove Duplicate Elements in an Array

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   How to remove duplicates using a temporary array?

   • Remove duplicates using a temporary array int uniqueArray = removeDuplicates(array); // Print the unique elements System.out.println( "Array after removing duplicates: " + Arrays.toString(uniqueArray)); public static int removeDuplicates( int array) { Arrays.sort(array); // Sort the array first int temp = new int [array.length];

   Java Program to Remove Duplicate Elements in an Array

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8. tutorialworld.in › java-coding › remove-duplicateJava Program to remove duplicate elements from array

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   Learn how to delete all duplicate elements from an array in Java using two different methods: one for sorted array and one for unsorted array. See the code, input and output examples for each method.