gistfile1.java

import acm.program.*;
public class Calculator4 extends ConsoleProgram {
private double first;
private double second;
private double result;
public void run() {
while (result <= 1337) {
print("First operand: ");
first = readDouble();
print("Second operand: ");
second = readDouble();
print("Operator: ");
String operator = readLine();
performOperation(operator);
println("The result of " + first 
+ operator + second + " is "+ result);
}
println("The result was over 1337, so I stopped!");
}
}


private void performOperation(String operator) {
if (operator.equals("+")) {
result = first + second;
} else if (operator.equals("-")) {
result = first - second;
} else if (operator.equals("/")) {
result = first / second;
} else if (operator.equals("*")) {
result = first * second;
} else {
result = 0;
}
}

import acm.program.ConsoleProgram;
public class hei extends ConsoleProgram{
public void run(){
  double first=readDouble("First Operand: "); 
   double second= readDouble("Second Operand: ");
String operator= readLine("Operator: ");
char third= operator.charAt(0);
double answer=
    calculatorOperator(first,second,third);
   print("the result of "+first+" "+third+" “
    +second+" = "+answer );
  }
}

} 
public double calculatorOperator(double first,double
   second, char third){
    double answer = 0; 
switch(third){
  case '+': answer=first + second; 
   break;
  case '/': answer=first/second; 
break; 
case '*': answer= first*second; 
break; 
case '-': answer= first-second; 
  break; 
default: print("u fucked up");
break;
     }
    return answer;
}