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Feb 14th, 2021
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Java 0.32 KB | None | 0 0
  1. /*
  2.  * To change this license header, choose License Headers in Project Properties.
  3.  * To change this template file, choose Tools | Templates
  4.  * and open the template in the editor.
  5.  */
  6. package com.mycompany.ja13;
  7.  
  8. public interface Calculator {
  9.     int calc(int a, int b); // один абстрактный метод
  10. }
  11.  
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