View Compilation Error

0_0_39902233_28321.c:1:1: error: unknown type name 'import'
    1 | import java.util.*;
      | ^~~~~~
0_0_39902233_28321.c:1:12: error: expected '=', ',', ';', 'asm' or '__attribute__' before '.' token
    1 | import java.util.*;
      |            ^
0_0_39902233_28321.c:3:1: error: unknown type name 'public'
    3 | public class BinaryTreeTraversal {
      | ^~~~~~
0_0_39902233_28321.c:3:14: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'BinaryTreeTraversal'
    3 | public class BinaryTreeTraversal {
      |              ^~~~~~~~~~~~~~~~~~~