字符串排序

package cskaoyan;
 
public class cskaoyan40 {
    @org.junit.Test
    public void arraySort() {
        java.util.Scanner in = new java.util.Scanner(System.in);
        System.out.println("请输入3个字符串,每个字符串以回车结束!");
        String[] str = new String[3];
        for (int i = 0; i < 3; i++) {
            str[i] = in.nextLine();
        }
 
        sort_arr(str);
 
        System.out.println("排序后的结果为：");
        print_arr(str);
 
        in.close();
    }
 
    private void sort_arr(String[] array) {
        for (int i = 0; i < array.length; i++) {
            for (int j = 0; j < array.length - i - 1; j++) {
                if (array[j].compareTo(array[j + 1]) > 0) {
                    String temp = array[j];
                    array[j] = array[j + 1];
                    array[j + 1] = temp;
                }
            }
        }
    }
 
    private void print_arr(String[] array) {
        for (int i = 0; i < array.length; i++) {
            System.out.print(array[i] + " ");
        }
        System.out.println();
    }
}