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單項(xiàng)選擇題

class Super { public int getLenght() { return 4; } } public class Sub extends Super { public long getLenght() { return 5; } public static void main(String[] args) {Super sooper = new Super(); Sub sub = new Sub(); System.out.println( sooper.getLenght() + “,” + sub.getLenght() ); } } What is the output? ()

A. 4,4
B. 4,5
C. 5,4
D. 5,5
E. Compilation fails.

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