在Java中,下面代码段输出结果为( )
public static void main(String[] args) {
int a = 1;
switch (a+1) {
case 1:
System.out.println(1);
case 2:
System.out.println(2);
case 3:
System.out.println(3);
break;
default:
System.out.println("default");
break;
}
}
A.2
B.2
3
C.1
2
3
D.2
3
default