Kalkulator w java [zamknięty]
Ostatnio pracowałem nad prostym kalkulatorem, który może dodawać, odejmować, mnożyć i dzielić.
public static void main(String arr[]){
double num1, num2;
String ans = null;
System.out.println("Calculator manu:");
System.out.println("\n"+"a for adding");
System.out.println("b for substracting");
System.out.println("c for multiplying");
System.out.println("d for dividing");
Scanner NumInput = new Scanner(System.in);
System.out.println("\n"+"Enter number one: ");
num1 = NumInput.nextDouble();
System.out.println("\n"+"Enter number two: ");
num2 = NumInput.nextDouble();
while(true)
{
Scanner AnsInput = new Scanner(System.in);
System.out.println("\n"+"Choose operation.");
String answer = AnsInput.next();
if(AnsInput.equals("1"))
{
answer = Double.toString(num1+num2);
System.out.println("\n"+"The sum of the first and second number is: "+answer);
}
else if(AnsInput.equals("2"))
{
answer = Double.toString(num1-num2);
System.out.println("\n"+"Subtraction of the first and the second number is: "+answer);
}
else if(AnsInput.equals("3"))
{
answer = Double.toString(num1*num2);
System.out.println("\n"+"The product of the first and second number is: "+answer);
}
else if(AnsInput.equals("4"))
{
answer = Double.toString(num1/num2);
System.out.println("\n"+"Ratio of the first and the second number is: "+answer);
}
}
}
Ale co, jeśli chcę zapaść w program, który działa jak zwykły kalkulator; dodaje, odejmuje, mnoży, dzieli, ... ale nie tylko dwa, ale wiele liczb.