Java Program for Selection Sort Last Updated : 23 Jul, 2025 Comments Improve Suggest changes Like Article Like Report The selection sort algorithm sorts an array by repeatedly finding the minimum element (considering ascending order) from the unsorted part and putting it at the beginning.Algorithm for Selection SortImplementation of Selection Sort in Java is mentioned below:Step 1: Array arr with N sizeStep 2: Initialise i=0 Step 3: If(i<N-1) Check for any element arr[j] where j>i and arr[j]<arr[i] then Swap arr[i] and arr[j]Step 4: i=i+1 and Goto Step 3Step 5: ExitProgram to Implement Selection Sort Java Java // Java program for implementation // of Selection Sort class SelectionSort { void sort(int a[]) { int n = a.length; // One by one move boundary of unsorted subarray for (int i = 0; i < n - 1; i++) { // Find the minimum element in unsorted array int min_idx = i; for (int j = i + 1; j < n; j++) { if (a[j] < a[min_idx]) min_idx = j; } // Swap the found minimum element with the first // element int temp = a[min_idx]; a[min_idx] = a[i]; a[i] = temp; } } // main function public static void main(String args[]) { SelectionSort ob = new SelectionSort(); int a[] = { 64, 25, 12, 22, 11 }; ob.sort(a); int n = a.length; for (int i = 0; i < n; ++i) System.out.print(a[i] + " "); } } Output11 12 22 25 64 Complexity of the Above MethodTime Complexity: O(n2)Auxiliary Space: O(1)Please refer complete article on Selection Sort for more details! Comment More infoAdvertise with us K kartik Follow Improve Article Tags : Java Explore Java BasicsIntroduction to Java4 min readJava Programming Basics9 min readJava Methods7 min readAccess Modifiers in Java6 min readArrays in Java9 min readJava Strings8 min readRegular Expressions in Java7 min readOOP & InterfacesClasses and Objects in Java10 min readJava Constructors10 min readJava OOP(Object Oriented Programming) Concepts10 min readJava Packages7 min readJava Interface11 min readCollectionsCollections in Java12 min readCollections Class in Java13 min readCollection Interface in Java6 min readIterator in Java5 min readJava Comparator Interface6 min readException HandlingJava Exception Handling8 min readJava Try Catch Block4 min readJava final, finally and finalize4 min readChained Exceptions in Java3 min readNull Pointer Exception in Java5 min readException Handling with Method Overriding in Java4 min readJava AdvancedJava Multithreading Tutorial3 min readSynchronization in Java10 min readFile Handling in Java4 min readJava Method References9 min readJava 8 Stream Tutorial7 min readJava Networking15+ min readJDBC Tutorial5 min readJava Memory Management4 min readGarbage Collection in Java6 min readMemory Leaks in Java3 min readPractice JavaJava Interview Questions and Answers15+ min readJava Programs - Java Programming Examples8 min readJava Exercises - Basic to Advanced Java Practice Programs with Solutions5 min readJava Quiz | Level Up Your Java Skills1 min readTop 50 Java Project Ideas For Beginners and Advanced [Update 2025]15+ min read Like