View Compilation Error

0_0_13409939_8231.cpp:1:1: error: 'import' does not name a type
 import java.util.*;
 ^
0_0_13409939_8231.cpp:3:10: error: expected ':' before 'static'
   public static void main(String args[]){
          ^
0_0_13409939_8231.cpp:3:27: error: 'String' has not been declared
   public static void main(String args[]){
                           ^
0_0_13409939_8231.cpp:18:1: error: expected ';' after class definition
 }
 ^
0_0_13409939_8231.cpp: In static member function 'static void Main::main(int*)':
0_0_13409939_8231.cpp:4:6: error: 'Scanner' was not declared in this scope
      Scanner sc = new Scanner(System.in);
      ^
0_0_13409939_8231.cpp:5:12: error: 'sc' was not declared in this scope
      while(sc.hasNext()){
            ^
0_0_13409939_8231.cpp:11:14: error: 'Math' was not declared in this scope
          x = Math.sqrt(x);
              ^
0_0_13409939_8231.cpp:14:9: error: 'System' was not declared in this scope
         System.out.printf("%.2f",sum);
         ^