/in/foo.c:1:1: error: unknown type name 'package'
 package project04;
 ^~~~~~~
/in/foo.c:2:1: error: unknown type name 'import'; did you mean 'short'?
 import java.util.*;
 ^~~~~~
 short
/in/foo.c:2:12: error: expected '=', ',', ';', 'asm' or '__attribute__' before '.' token
 import java.util.*;
            ^
/in/foo.c:4:1: error: unknown type name 'public'
 public class Test4 {
 ^~~~~~
/in/foo.c:4:14: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'Test4'
 public class Test4 {
              ^~~~~