Select sorting has popped out

package java02;

//Selection sort (Selection sort) is a simple and intuitive sorting algorithm.
//Its working principle is to select the smallest (or largest) element from the data elements to be sorted each time,
//store it at the beginning of the sequence, until all the data elements to be sorted are arranged.
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Scanner;

public class selection sorting has popped out {

public static void main(String[] args) {
	SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
	System.out.println(df.format(new Date()) + " 郭子安的数字组选择排序");
	Scanner in = new Scanner(System.in);
	int a[] = new int[10];
	int i, j, min, temp;
	System.out.println("请输入10个整数：");
	for (i = 0; i < 10; i++) {
		int n = in.nextInt();
		a[i] = n;
	}
	for (i = 0; i < 10; i++) {
		min = i;
		for (j = i + 1; j < 10; j++) {

			if (a[j] < a[min]) {
				min = j;
			}
		}
		temp = a[i];
		a[i] = a[min];
		a[min] = temp;
	}
	for (i = 0; i < 10; i++) {
		System.out.printf(a[i] + " ");
	}
	System.out.println();
	in.close();
}

}