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View Compilation Error

0_0_11023387_5602\Main.java:1: 需要为 class、interface 或 enum
public static void main(String [] args){
              ^
0_0_11023387_5602\Main.java:4: 需要为 class、interface 或 enum
		int a,b;
		^
0_0_11023387_5602\Main.java:5: 需要为 class、interface 或 enum
		while(sc.hasNext()){
		^
0_0_11023387_5602\Main.java:7: 需要为 class、interface 或 enum
			b = sc.nextInt();
			^
0_0_11023387_5602\Main.java:8: 需要为 class、interface 或 enum
			System.out.println(a+b);
			^
0_0_11023387_5602\Main.java:9: 需要为 class、interface 或 enum
		}
		^
6 错误


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