View Compilation Error

0_0_31966054_1822.cpp:1:1: error: 'import' does not name a type
 import java.text.DecimalFormat;
 ^
0_0_31966054_1822.cpp:2:1: error: 'import' does not name a type
 import java.util.*;
 ^
0_0_31966054_1822.cpp:4:1: error: expected unqualified-id before 'public'
 public class FatMouseTrade {
 ^