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[Sync Iteration] java/calculator-conundrum/2 #61

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[Sync Iteration] java/calculator-conundrum/2 #61

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27 changes: 27 additions & 0 deletions solutions/java/calculator-conundrum/2/src/main/java/CalculatorConundrum.java
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Original file line number Diff line number Diff line change
@@ -0,0 +1,27 @@
class CalculatorConundrum {
public String calculate(int operand1, int operand2, String operation) {
int result ;
switch(operation){
case "+" : result = operand1 + operand2;
break;
case "*" : result = operand1 * operand2;
break;
case "/" :
try{
result = operand1 / operand2;
}
catch(ArithmeticException e){
throw new IllegalOperationException("Division by zero is not allowed",e);
}
break;
case null :
throw new IllegalArgumentException("Operation cannot be null");
case "" :
throw new IllegalArgumentException("Operation cannot be empty");
default :
throw new IllegalOperationException("Operation '" + operation + "' does not exist");
}
return operand1 + " " + operation + " " + operand2 + " = " + result;

}
}