View Compilation Error

0_0_39107323_13975.cpp:1:1: error: 'import' does not name a type
    1 | import java.io.BufferedInputStream;
      | ^~~~~~
0_0_39107323_13975.cpp:1:1: note: C++20 'import' only available with '-fmodules-ts', which is not yet enabled with '-std=c++20'
0_0_39107323_13975.cpp:2:1: error: 'import' does not name a type
    2 | import java.util.Scanner;
      | ^~~~~~
0_0_39107323_13975.cpp:2:1: note: C++20 'import' only available with '-fmodules-ts', which is not yet enabled with '-std=c++20'
0_0_39107323_13975.cpp:4:1: error: expected unqualified-id before 'public'
    4 | public class Main { //提交时改成Main
      | ^~~~~~