View Compilation Error

0_0_26831661_27051.cpp:1:1: error: 'import' does not name a type
 import java.util.Scanner;
 ^
0_0_26831661_27051.cpp:3:9: error: expected ':' before 'static'
  public static void main(String[] args ){
         ^
0_0_26831661_27051.cpp:3:26: error: 'String' has not been declared
  public static void main(String[] args ){
                          ^
0_0_26831661_27051.cpp:3:35: error: expected ',' or '...' before 'args'
  public static void main(String[] args ){
                                   ^
0_0_26831661_27051.cpp:17:1: error: expected ';' after class definition
 }
 ^
0_0_26831661_27051.cpp: In static member function 'static void Plus::main(int*)':
0_0_26831661_27051.cpp:7:3: error: 'System' was not declared in this scope
   System.out.println("please a and b:");
   ^
0_0_26831661_27051.cpp:8:3: error: 'Scanner' was not declared in this scope
   Scanner sc = new Scanner(System.in);
   ^
0_0_26831661_27051.cpp:9:5: error: 'sc' was not declared in this scope
   a=sc.nextInt();
     ^