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View Compilation Error

0_0_12161800_18201\Main.java:1: 需要 ';'
import java.util.Scanner
                        ^
0_0_12161800_18201\Main.java:2: 需要 '{'
public class shit(
                 ^
0_0_12161800_18201\Main.java:3: 需要 ';'
public static void main(String[]args)(
                                     ^
0_0_12161800_18201\Main.java:7: 非法的类型开始
while(reader.hasNext())
^
0_0_12161800_18201\Main.java:7: 需要 <标识符>
while(reader.hasNext())
                    ^
0_0_12161800_18201\Main.java:7: 需要 ';'
while(reader.hasNext())
                     ^
0_0_12161800_18201\Main.java:7: 非法的类型开始
while(reader.hasNext())
                      ^
0_0_12161800_18201\Main.java:7: 需要 <标识符>
while(reader.hasNext())
                       ^
0_0_12161800_18201\Main.java:8: 需要 ';'
{
 ^
0_0_12161800_18201\Main.java:9: 非法的类型开始
a=reader.nextInt();
 ^
0_0_12161800_18201\Main.java:9: 需要 ';'
a=reader.nextInt();
        ^
0_0_12161800_18201\Main.java:9: 方法声明无效;需要返回类型
a=reader.nextInt();
         ^
0_0_12161800_18201\Main.java:10: 需要 <标识符>
b=reader.nextInt();
 ^
0_0_12161800_18201\Main.java:11: 需要 <标识符>
System.out.println(a+b);
                  ^
0_0_12161800_18201\Main.java:11: 需要 <标识符>
System.out.println(a+b);
                    ^
0_0_12161800_18201\Main.java:11: 需要 ';'
System.out.println(a+b);
                     ^
0_0_12161800_18201\Main.java:11: 非法的类型开始
System.out.println(a+b);
                      ^
0_0_12161800_18201\Main.java:11: 需要 <标识符>
System.out.println(a+b);
                       ^
0_0_12161800_18201\Main.java:11: 需要 ';'
System.out.println(a+b);
                        ^
0_0_12161800_18201\Main.java:14: 需要为 class、interface 或 enum
} 


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