View Compilation Error

0_0_19068441_20719.cpp:2:1: error: 'import' does not name a type
 import java.text.DecimalFormat;
 ^
0_0_19068441_20719.cpp:3:1: error: 'import' does not name a type
 import java.util.Scanner;
 ^
0_0_19068441_20719.cpp:5:1: error: expected unqualified-id before 'public'
 public class main {
 ^