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View Compilation Error

0_0_10521272_18634\Main.java:1: 需要为 class、interface 或 enum
public static void main(String[] args) {
              ^
0_0_10521272_18634\Main.java:4: 需要为 class、interface 或 enum
        Scanner in = new Scanner(System.in);
        ^
0_0_10521272_18634\Main.java:6: 需要为 class、interface 或 enum
        num = in.nextInt();
        ^
0_0_10521272_18634\Main.java:7: 需要为 class、interface 或 enum
        in.nextLine();
        ^
0_0_10521272_18634\Main.java:8: 需要为 class、interface 或 enum
        for (int i = 0; i < num; ++i) {
        ^
0_0_10521272_18634\Main.java:8: 需要为 class、interface 或 enum
        for (int i = 0; i < num; ++i) {
                        ^
0_0_10521272_18634\Main.java:8: 需要为 class、interface 或 enum
        for (int i = 0; i < num; ++i) {
                                 ^
0_0_10521272_18634\Main.java:10: 需要为 class、interface 或 enum
            String [] array = s.split(" ");
            ^
0_0_10521272_18634\Main.java:11: 需要为 class、interface 或 enum
            for(String ar:array) {
            ^
0_0_10521272_18634\Main.java:12: 需要为 class、interface 或 enum
                for(int j = ar.length() -1 ;j >=0;--j) {
                                            ^
0_0_10521272_18634\Main.java:12: 需要为 class、interface 或 enum
                for(int j = ar.length() -1 ;j >=0;--j) {
                                                  ^
0_0_10521272_18634\Main.java:14: 需要为 class、interface 或 enum
                }
                ^
0_0_10521272_18634\Main.java:16: 需要为 class、interface 或 enum
            }
            ^
0_0_10521272_18634\Main.java:18: 需要为 class、interface 或 enum
        }
        ^
14 错误


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