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Given the following code, which method declarations, when inserted at the indicated position, will not cause the program to fail compilation?()   public class Qdd1f {   public long sum(long a, long b) {  return a + b;  }   // insert new method declaration here  }  

发布日期:2020-04-10

Given the following code, which method declaration...
A

public int sum(int a, int b) { return a + b; }

B

public int sum(long a, long b) { return 0; }

C

abstract int sum();

D

private long sum(long a, long b) { return a + b; }

E

public long sum(long a, int b) { return a + b; }

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