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View Compilation Error

0_0_31038335_11665\Main.java:2: 错误: 需要class, interface或enum
    public static void main(String[] args) {
                  ^
0_0_31038335_11665\Main.java:4: 错误: 需要class, interface或enum
    	int a,b;
    	^
0_0_31038335_11665\Main.java:5: 错误: 需要class, interface或enum
    	while(sc.hasNext()) {
    	^
0_0_31038335_11665\Main.java:7: 错误: 需要class, interface或enum
    		b=sc.nextInt();
    		^
0_0_31038335_11665\Main.java:8: 错误: 需要class, interface或enum
    	System.out.println(a+b);
    	^
0_0_31038335_11665\Main.java:9: 错误: 需要class, interface或enum
    	}
    	^
6 个错误


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