View Compilation Error

0_0_20897240_1651.cpp:10:1: error: stray '@' in program
 @SuppressWarnings("unused")
 ^
0_0_20897240_1651.cpp:1:1: error: 'import' does not name a type
 import java.io.File;
 ^
0_0_20897240_1651.cpp:2:1: error: 'import' does not name a type
 import java.io.FileNotFoundException;
 ^
0_0_20897240_1651.cpp:3:1: error: 'import' does not name a type
 import java.math.BigDecimal;
 ^
0_0_20897240_1651.cpp:4:1: error: 'import' does not name a type
 import java.util.ArrayList;
 ^
0_0_20897240_1651.cpp:5:1: error: 'import' does not name a type
 import java.util.LinkedList;
 ^
0_0_20897240_1651.cpp:6:1: error: 'import' does not name a type
 import java.util.Queue;
 ^
0_0_20897240_1651.cpp:7:1: error: 'import' does not name a type
 import java.util.Scanner;
 ^
0_0_20897240_1651.cpp:10:18: error: expected constructor, destructor, or type conversion before '(' token
 @SuppressWarnings("unused")
                  ^