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Arrays in Java: (Part 9)

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Arrays in Java: (Part 9)

One Dimensional Array Selection Sort:

14. Selection Sort in Java (for integers)
15. Selection Sort in Java (for Strings)

  • Example: Selection Sort in Java (for Integers)
    • import java.util.Scanner;
    class selection {
    public static void main(String []args) {
    Scanner scan = new Scanner(System.in);
    System.out.println("number of elements: ");
    int n = scan.nextInt();
    int array[] = new int[n];
    System.out.println("Enter " + n + "elements");
    for (int i=0; i<n; i++){
    array[i] = scan.nextInt();
    }
    for (int i = 0; i < n-1; i++)
    {
    // find the minimum element in unsorted array
    int min_index = i;
    for (int j = i+1; j < n; j++){
    if (array[j]<array[min_index])
    min_index = j;
    }
    // swap the found minimum element with the first element
    int temp = array[min_index];
    array[min_index] = array[i];
    array[i] = temp;
    }
    System.out.println("\nsorted array: ");
    for (int i=0; i<n;i++) {
    System.out.println(array[i]);
    }
    }
    }
    view raw pattern.java hosted with ❤ by GitHub
  • Example: Selection Sort in Java (for Strings)
    • import java.util.Scanner;
    class selection {
    public static void main(String []args) {
    Scanner scan = new Scanner(System.in);
    System.out.println("number of elements: ");
    int n = scan.nextInt();
    String array[] = new String[n];
    System.out.println("Enter " + n + "elements");
    for (int i=0; i<n; i++){
    array[i] = scan.next();
    }
    for (int i = 0; i < n-1; i++)
    {
    // find the minimum element in unsorted array
    int min_index = i;
    for (int j = i+1; j < n; j++){
    if (array[j].compareToIgnoreCase(array[min_index])<0)
    min_index = j;
    }
    // swap the found minimum element with the first element
    String temp = array[min_index];
    array[min_index] = array[i];
    array[i] = temp;
    }
    System.out.println("\nsorted array: ");
    for (int i=0; i<n;i++) {
    System.out.println(array[i]);
    }
    }
    }
    view raw pattern.java hosted with ❤ by GitHub

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