多选题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 declarat

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多选题

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 }

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

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

abstract int sum（）；

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

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

参考答案和解析

正确答案： B,C

解析：暂无解析

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相似问题和答案

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第4题：

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