View Compilation Error

0_0_35915085_14498\Main.java:1: 错误: 需要class, interface或enum
public static void main(String[] args) {
              ^
0_0_35915085_14498\Main.java:3: 错误: 需要class, interface或enum
        while (scanner.hasNextLine()) {
        ^
0_0_35915085_14498\Main.java:5: 错误: 需要class, interface或enum
            BigDecimal r = new BigDecimal(next.substring(0, 6));
            ^
0_0_35915085_14498\Main.java:6: 错误: 需要class, interface或enum
            Integer n = new Integer(next.substring(7, 9).trim());
            ^
0_0_35915085_14498\Main.java:7: 错误: 需要class, interface或enum
            BigDecimal pow = r.pow(n);
            ^
0_0_35915085_14498\Main.java:8: 错误: 需要class, interface或enum
            String res = pow.toPlainString();
            ^
0_0_35915085_14498\Main.java:9: 错误: 需要class, interface或enum
            System.out.println(res.startsWith("0.") ? res.substring(1) : res);
            ^
0_0_35915085_14498\Main.java:10: 错误: 需要class, interface或enum
        }
        ^
8 个错误