sorting array in java using for loop - Brave Search

Using a For Loop to Manually Sort an Array - Java

stackoverflow.com › questions › 34745203 › using-a-for-loop-to-manually-sort-an-array-java

You have to initialize the value for j as i+1, this sorting algorithm is called bubble sort, that works by repeatedly swapping the adjacent elements if they are in wrong order. The below method is always runs O(n^2) time even if the array is sorted.

public static void main (String[] args)
{
    int[] array = {4,2,1,3,5,9,6,8,7};

    for(int i = 0 ; i < array.length;i++)
    {
        for(int j = i+1 ; j< array.length;j++)
        {
            if(array[i] > array[j])
            {
                int temp = array[i];
                array[i] = array[j];
                array[j] = temp;
            }
        }
    }

Answer from apoori on Stack Overflow

stackoverflow.com › questions › 34745203 › using-a-for-loop-to-manually-sort-an-array-java

Using a For Loop to Manually Sort an Array - Java - Stack Overflow

You have to initialize the value for j as i+1, this sorting algorithm is called bubble sort, that works by repeatedly swapping the adjacent elements if they are in wrong order. The below method is always runs O(n^2) time even if the array is sorted.

public static void main (String[] args)
{
    int[] array = {4,2,1,3,5,9,6,8,7};

    for(int i = 0 ; i < array.length;i++)
    {
        for(int j = i+1 ; j< array.length;j++)
        {
            if(array[i] > array[j])
            {
                int temp = array[i];
                array[i] = array[j];
                array[j] = temp;
            }
        }
    }

 public int[] sort(int[] arr) {

        int marker, i, temp;
        marker =0;
        i = 1;

        while (marker < arr.length - 1) {
            if (i == arr.length) {
                marker++;
                i = marker;
            }

            if (arr[marker] > arr[i]) {
                temp = arr[marker];
                arr[marker] = arr[i];
                arr[i] = temp;
            }

            i++;
        }

        return arr;
    }

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softwaretestinghelp.com › home › java › how to sort an array in java – tutorial with examples

How To Sort An Array In Java - Tutorial With Examples

April 1, 2025 - You can sort the array using manual sorting like using for loops. What you can do is use two for loops, one to traverse the array from the starting and another for loop inside the outer one to traverse the next element.

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w3schools.com › java › ref_arrays_sort.asp

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geeksforgeeks.org › java › sorting-in-java

Sorting in Java - GeeksforGeeks

Java · class GFG { // Main driver method public static void main(String[] args) { // Custom input array int arr[] = { 4, 3, 2, 1 }; // Outer loop for (int i = 0; i < arr.length; i++) { // Inner nested loop pointing 1 index ahead for (int j = i + 1; j < arr.length; j++) { // Checking elements int temp = 0; if (arr[j] < arr[i]) { // Swapping temp = arr[i]; arr[i] = arr[j]; arr[j] = temp; } } // Printing sorted array elements System.out.print(arr[i] + " "); } } } Output ·

Published: April 16, 2026

scientecheasy.com › home › blog › sorting array in java

Sorting Array in Java - Scientech Easy

February 12, 2025 - In this way, we can also sort elements of an array in natural or ascending order by using for loop. Let’s take a simple example program where we will sort elements of an array of integer types using Comparator in Java. Here, we will use the Scanner class to accept array elements from the keyboard and sort them in ascending order.

reddit.com › r/askcomputerscience › java arrays.sort(arr) or use loops instead?

r/AskComputerScience on Reddit: Java Arrays.sort(arr) or use loops instead?

October 9, 2020 -

So I'm still kind of a novice in java, and I would appreciate it if someone could explain what is a more preferred method in sorting the elements of an array in ascending order.

Shoul I use Loops? example:

//Sort the array in ascending order
for (int i = 0; i < arr.length; i++) {
for (int j = i+1; j < arr.length; j++) {
if(arr[i] > arr[j]) {
temp = arr[i];
arr[i] = arr[j];
arr[j] = temp;

Or is it more recomended to use Arrays.sort instead?

Or is it dependent on the usage?

Also what are the pros and cons of each.

Thank you to those who can enlighten me.

Edit: Thank you so much to everyone who shared their insights!

Year kind dot calm tomorrow thoughts bank weekend travel science night hobbies.

Arrays.sort uses I believe quick sort or merge sort. this is O(nlogn ) Much faster than selection sort. which is O(n2) time complexity. The java sort is much much faster

beginnersbook.com › 2018 › 10 › java-program-to-sort-an-array-in-ascending-order

Java Program to Sort an Array in Ascending Order

Once we have all the numbers stored in the array, we are sorting them using nested for loop. import java.util.Scanner; public class JavaExample { public static void main(String[] args) { int count, temp; //User inputs the array size Scanner scan = new Scanner(System.in); System.out.print("Enter ...

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Bubble Sort: Java Array Sorting with a For Loop - Udemy Blog

April 14, 2026 - Implementing bubble sort in Java means using nested for loops to repeatedly compare and swap adjacent array values until they're sorted in ascending or descending order. This article walks through the full Java code, explaining the role of nested ...

codegym.cc › java blog › java algorithms › how to sort an array in java

How to Sort an Array in Java

January 7, 2025 - The inner loop compares adjacent elements. If the order is wrong, the method swaps them. This procedure is repeated until the entire array has been sorted. Here is an output of our program: Array before sorting: 18 28 2 7 90 45 Array after sorting: 2 7 18 28 45 90 · Selection algorithm sorts an array by repeatedly finding the smallest element from the unsorted part and placing it at the beginning. Let’s write it in Java:

sanfoundry.com › java-program-sort-array-ascending-order

Java Program to Sort an Array in Ascending Order - Sanfoundry

May 15, 2023 - 7. If the first element is greater than the second element, the two elements are swapped using a temporary variable. 8. The sorted array is printed in ascending order using a for loop. ... $ javac Ascending _Order.java $ java Ascending _Order ...

geeksforgeeks.org › java › java-program-to-sort-the-elements-of-an-array-in-ascending-order

Java Program to Sort the Elements of an Array in Ascending Order - GeeksforGeeks

August 18, 2026 - import java.util.Arrays; class ... for swapping elements int t = 0; // outer loop to iterate through the array for (int i = 0; i < l; i++) { // inner loop to compare and swap elements for (int j = i + 1; j < l; j++) { if ...

herovired.com › learning-hub › topics › how-to-sort-an-array-in-java

How to Sort an Array in Java – Tutorial With Examples

July 23, 2024 - The above example shows the workings of nested loops to arrange a given array in ascending order. The other way to sort an array is to create a user-defined method. This method contains the sorting logic and can be reused multiple times in a program. ... // Java program to sort integer array in ascending order using user-defined method public class SortArrayExample { public static void main(String[] args){ // Define an integer type array int[] arr = new int[] {99, 39, 10, -9, 20, 2990, 0, -1, 13}; // Printing the original array System.out.println("The Original Array is: "); for (int num : arr)

geeksforgeeks.org › java › arrays-sort-in-java

Arrays.sort() in Java - GeeksforGeeks

Arrays.sort() is a built-in method in Java used to sort arrays in ascending order. Arrays.sort() is a static method of the Arrays class .It supports arrays of primitive types and objects. Sorts object arrays using their natural ordering or a provided Comparator. It uses Dual-Pivot QuickSort for primitives and TimSort for objects (optimized for performance).

Published: August 27, 2026

sentry.io › sentry answers › java › how to lexicographically sort an array in java

How to Lexicographically Sort an Array in Java

September 3, 2026 - Because strings are objects, the method we will use is Arrays.sort(Object[]). This sorting uses the TimSort algorithm, which has a worst-case time complexity of O(n*log(n)). By default, sort() will sort the array lexicographically. Let’s take a look at an example: import java.util.Arrays; public class Sort { public static void main(String[] args) { String[] array = {"shrew", "porcupine", "newt", "chameleon"}; Arrays.sort(array); for (String s : array) { System.out.print(s + " "); } } }

geeksforgeeks.org › arrays-sort-in-java-with-examples

Arrays.sort() in Java with Examples | GeeksforGeeks

Arrays sort() method is used for sorting the elements in an Array. It consists of two variations, one in which it sorts the entire array, it may be an integer or character array. Another one allows sorting a specific part of the array by passing ...

Published: November 11, 2024

hackernoon.com › how-to-sort-an-array-in-java-a-complete-tutorial

How to Sort an Array in Java - A Complete Tutorial | HackerNoon

August 27, 2024 - In Java, we can sort the array in the following ways: ● Using the sort() Method ● Without using the method · ● Using the for Loop ● Using the User-Defined Method

quora.com › Can-we-sort-an-array-using-single-loop-in-Java

Can we sort an array using single loop in Java? - Quora

Answer (1 of 10): Yes, you can do one more thing add it to the ArrayList and sort it via sort() of the arraylist . There you go, this is how you can do sorting without even using a single loop. For further on how to use try importing java.util.ArrayList there are several other classes which can h...

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Sort Array in Java - Naukri Code 360

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coderanch.com › t › 716204 › java › Sorting-array-integers

Sorting an array of integers (Beginning Java forum at Coderanch)

September 11, 2019 - For sort(), the algorithm efficiency depends on the initial state of the array, e.g.: a) an array that's already sorted, b) an array that's already sorted and then moving the least value to the end, c) an array presorted in reverse order, d) random numbers, e) small range of random numbers with lots of duplicates. JavaRanch-FAQ HowToAskQuestionsOnJavaRanch UseCodeTags DontWriteLongLines ItDoesntWorkIsUseLess FormatCode JavaIndenter SSCCE API-17 JLS JavaLanguageSpecification MainIsAPain KeyboardUtility

quora.com › What-is-a-more-preferred-method-in-sorting-the-elements-of-an-array-in-ascending-order-Java-Arrays-sort-arr-or-use-loops-instead

What is a more preferred method in sorting the elements of an array in ascending order, Java Arrays.sort(arr) or use loops instead? - Quora

Answer (1 of 3): Sorting is a common operation. Sort algorithms There are various algorithms to solve the problem of putting elements of a list into a certain order. Which algorithm to use, how to use them, depends on the data set to be sorted and the specific computation resources. With the d...