insertion sort java code example
Example 1: java insertion sort
public static void insertionSort(int[] arr) {
int n = arr.length;
for(int i = 1; i < n; i++) {
int key = arr[i];
int j = i - 1;
while(j >= 0 && arr[j] > key) {
arr[j+1] = arr[j];
j--;
}
arr[j+1] = key;
}
}
Example 2: Insertion sort java descending order
import java.util.Arrays;
public class InsertionSortDescendingOrder
{
public static void main(String[] args)
{
int[] arrInput = { 50, 80, 10, 30, 90, 60 };
System.out.println("Before Sorting: ");
displayArray(arrInput);
insertionSort(arrInput);
System.out.println("\nAfter Sorting: ");
displayArray(arrInput);
}
private static void insertionSort(int[] arrNumber)
{
for(int a = 1; a < arrNumber.length; a++)
{
int toSort = arrNumber[a];
int b = a;
while(b > 0 && arrNumber[b - 1] < toSort)
{
arrNumber[b] = arrNumber[b - 1];
b--;
}
arrNumber[b] = toSort;
}
}
public static void displayArray(int[] arrPrint)
{
System.out.println(Arrays.toString(arrPrint));
}
}
Example 3: insertion sort java
Insertion program
public class InsertionSortExample
{
public void sort(int[] arrNum)
{
int number = arrNum.length;
for(int a = 1; a < number; ++a)
{
int keyValue = arrNum[a];
int b = a - 1;
while(b >= 0 && arrNum[b] > keyValue)
{
arrNum[b + 1] = arrNum[b];
b = b - 1;
}
arrNum[b + 1] = keyValue;
}
}
static void displayArray(int[] arrNum)
{
int num = arrNum.length;
for(int a = 0; a < num; ++a)
{
System.out.print(arrNum[a] + " ");
}
System.out.println();
}
public static void main(String[] args)
{
int[] arrInput = { 50, 80, 10, 30, 90, 60 };
InsertionSortExample obj = new InsertionSortExample();
obj.sort(arrInput);
displayArray(arrInput);
}
}
Example 4: insertion sort
function insertionSort(vetor) {
let current;
for (let i = 1; i < vetor.length; i += 1) {
let j = i - 1;
current = vetor[i];
while (j >= 0 && current < vetor[j]) {
vetor[j + 1] = vetor[j];
j--;
}
vetor[j + 1] = current;
}
return vetor;
}
insertionSort([1, 2, 5, 8, 3, 4])
Example 5: Insertion sort code in Java
public class InsertionSort
{
void sort(int arr[])
{
int n = arr.length;
for (int i=1; i<n; ++i)
{
int key = arr[i];
int j = i-1;
while (j>=0 && arr[j] > key)
{
arr[j+1] = arr[j];
j = j-1;
}
arr[j+1] = key;
}
}
static void printArray(int arr[])
{
int n = arr.length;
for (int i=0; i<n; ++i)
System.out.print(arr[i] + " ");
System.out.println();
}
public static void main(String args[])
{
int arr[] = {12, 11, 13, 5, 6};
InsertionSort ob = new InsertionSort();
ob.sort(arr);
printArray(arr);
}
}