题解 | #统计字符串中字母出现次数#

import java.util.Arrays; import java.util.Scanner; public class Main { public static void main(String[] args) { Scanner scanner = new Scanner(System.in); int[] arr = new int[7]; for (int i = 0; i < arr.length; i++) { arr[i] = scanner.nextInt(); } scanner.close();

    //write your code here......
    for(int i = 0;i<arr.length;i++){
        for(int j = i+1;j<arr.length;j++){
            if(arr[i] > arr[j])
                arr[i] = arr[i]+arr[j]-(arr[j] = arr[i]);
        }
    }

    for (int k = 0; k < arr.length; k++) {
        System.out.print(arr[k]+" ");
    }
}

}