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View Compilation Error

0_0_16790682_19898\Main.java:4: 错误: 类sum是公共的, 应在名为 sum.java 的文件中声明
public class sum{ 
       ^
0_0_16790682_19898\Main.java:14: 错误: 无法从静态上下文中引用非静态 变量 sum
        sum+=i;
        ^
0_0_16790682_19898\Main.java:17: 错误: 无法从静态上下文中引用非静态 变量 sum
    System.out.println(sum+"\n");
                       ^
3 个错误


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