java 选择排序

import java.util.Scanner;

public class SelectionSort {

public static void sort(int[] a, int n){

if(n<=1)

return;

for(int i=0; i<n-1; i++){

for(int j=i+1; j<n; j++){

if(a[i]>a[j])

swap(a, i, j);

}

}

}

private static void swap(int[] a, int i, int j) {

a[i] ^= a[j];

a[j] ^= a[i];

a[i] ^= a[j];

}

@SuppressWarnings("resource")

public static void main(String[] args) {

Scanner sc = new Scanner(System.in);

int N=0;

int[] a = new int[101];

System.out.println("请输入数组长度");

N = sc.nextInt();

for(int i=0; i<N; i++){

a[i] = sc.nextInt();

}

sort(a, N);

for(int i=0; i<N; i++){

System.out.print(a[i]+"  ");

}

}

}