单项选择题

class Parser extends Utils { 
public static void main
(String [] args) { 
try { System.out.print(new Parser().getInt("42")); 
} catch (NumberFormatException n) { 
System.out.println("NFExc "); } 
} 
int getInt(String arg) throws NumberFormatException { 
return Integer.parseInt(arg); 
} 
} 
class Utils { 
int getInt(String arg) { return 42; } 
} 
结果为:() 

A.42
B.NFExc
C.42NFExc
D.编译失败

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