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View Compilation Error

0_0_16568682_23372\Main.java:5: 错误: 非法的类型开始
    while(sc.hasNext()){ 
    ^
0_0_16568682_23372\Main.java:5: 错误: 需要<标识符>
    while(sc.hasNext()){ 
                    ^
0_0_16568682_23372\Main.java:5: 错误: 需要';'
    while(sc.hasNext()){ 
                     ^
0_0_16568682_23372\Main.java:5: 错误: 非法的类型开始
    while(sc.hasNext()){ 
                      ^
0_0_16568682_23372\Main.java:5: 错误: 需要<标识符>
    while(sc.hasNext()){ 
                       ^
0_0_16568682_23372\Main.java:5: 错误: 需要';'
    while(sc.hasNext()){ 
                        ^
0_0_16568682_23372\Main.java:6: 错误: 需要<标识符>
    int a=sc.nextInt();
         ^
0_0_16568682_23372\Main.java:8: 错误: 需要<标识符>
    system.out.println(a+b);
                      ^
0_0_16568682_23372\Main.java:8: 错误: 需要<标识符>
    system.out.println(a+b);
                        ^
0_0_16568682_23372\Main.java:8: 错误: 需要';'
    system.out.println(a+b);
                         ^
0_0_16568682_23372\Main.java:8: 错误: 非法的类型开始
    system.out.println(a+b);
                          ^
0_0_16568682_23372\Main.java:8: 错误: 需要<标识符>
    system.out.println(a+b);
                           ^
0_0_16568682_23372\Main.java:8: 错误: 需要';'
    system.out.println(a+b);
                            ^
0_0_16568682_23372\Main.java:9: 错误: 非法的类型开始
    system.out.println();
          ^
0_0_16568682_23372\Main.java:9: 错误: 需要';'
    system.out.println();
              ^
0_0_16568682_23372\Main.java:9: 错误: 方法声明无效; 需要返回类型
    system.out.println();
               ^
0_0_16568682_23372\Main.java:17: 错误: 需要class, interface或enum
}
^
17 个错误


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