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Calculator.java

public class Calculator{
  
  public Calculator(){ 
    
  }
  public int add(int a, int b){
  
    return a + b;
  }  
  
  public int subtract(int a, int b){
    
  return a - b;
  }
  
  public int multiply(int a, int b){
    
    return a * b;
  }
  
  public int divide(){
    
    return a/b;
    { 
      
      if (b==0)
      {
        
        System.out.println("Error! Diving by zero is not allowed!");
      return 0;
      }
      
      else { 
        return a/b;
        }
      
      public int modulo(int a, int b){
      if (b==0)  { 
    
      System.out.println("Error! Diving by zero is not allowed!");
      }
  else {
    
    return a % b;
  }
public static void main(String[] args){
     
         Calculator myCalculator = new Calculator();
   }     
        
}