View Compilation Error

0_0_37587186_6881.cpp:1:1: error: 'import' does not name a type
 import java.io.*;
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0_0_37587186_6881.cpp:2:1: error: 'import' does not name a type
 import java.math.BigDecimal;
 ^
0_0_37587186_6881.cpp:3:1: error: 'import' does not name a type
 import java.math.BigInteger;
 ^
0_0_37587186_6881.cpp:4:1: error: 'import' does not name a type
 import java.util.Calendar;
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0_0_37587186_6881.cpp:5:1: error: 'import' does not name a type
 import java.util.HashSet;
 ^
0_0_37587186_6881.cpp:6:1: error: 'import' does not name a type
 import java.util.Scanner;
 ^
0_0_37587186_6881.cpp:7:1: error: 'import' does not name a type
 import java.util.Set;
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0_0_37587186_6881.cpp:8:1: error: expected unqualified-id before 'public'
 public class Main{
 ^