選択、バブル、挿入ソート
1868 ワード
package com.companyname;
public class Sort {
public static void main(String[] args) {
int[] arr = new int[] { 41, 56, 11, 86, 22, 37, 8, 91, 19, 51, 94, 69,71, 48 };
System.out.println(" :");
printArr(arr);
// bubbleSort(arr);
insertSort(arr);
System.out.println(" :");
printArr(arr);
}
public static void selectSort(int[] arr) { //
for (int i = 0; i < arr.length; i++) {
for (int j = i + 1; j < arr.length; j++) {
if (arr[i] > arr[j]) {
int temp = arr[i];
arr[i] = arr[j];
arr[j] = temp;
}
}
System.out.println(" " + i + " :");
printArr(arr);
}
}
public static void bubbleSort(int[] arr) { //
for (int i = 0; i < arr.length; i++) {
for (int j = 0; j < arr.length - 1; j++) {
if (arr[j] > arr[j + 1]) {
int temp = arr[j];
arr[j] = arr[j + 1];
arr[j + 1] = temp;
}
}
System.out.println(" " + (i + 1) + " :");
printArr(arr);
}
}
public static void insertSort(int[] arr) { //
for (int i = 1; i < arr.length; i++) {
int temp = arr[i];
int j = i;
while (j > 0 && arr[j - 1] > temp) {
arr[j] = arr[--j];
}
arr[j] = temp;
}
}
public static void printArr(int[] arr) {
System.out.print("[");
for (int i = 0; i < arr.length; i++) {
if (i == arr.length - 1) {
System.out.println(arr[i] + "]");
} else {
System.out.print(arr[i] + ",");
}
}
}
}