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單項(xiàng)選擇題

class super {  
public int getLength() {return 4;}  
 }  
public class Sub extends Super {  
public long getLength() {return 5;}  
public static void main (Stringargs) {  
super sooper = new Super (); 
Sub sub = new Sub();  
System.out.printIn(  
sooper.getLength()+ “,” + sub.getLength() };  
}  
What is the output?() 

A. 4, 4
B. 4, 5
C. 5, 4
D. 5, 5
E. The code will not compile.

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