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JavaCalc
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version 1.2 

- added total retention
  - similar to "Ans" on TI calculators
This commit is contained in:
Chris's Razer Blade 2021-01-22 11:19:36 -05:00
parent dc4294ea5e
commit f6b9e391ba
3 changed files with 81 additions and 57 deletions
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out/production/untitled/com/company/Main.class
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src/com/company/Calc.java Normal file
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@ -0,0 +1,42 @@
package com.company;
public class Calc {
int num1;
int num2;
public static String main(String op,int num1,int num2) {
return "";
}
//math functions
public static void print(String text){
System.out.println(text);
}
public static int add(String num1, String num2){
int add1 = Integer.parseInt(num1);
int add2 = Integer.parseInt(num2);
return add1 + add2;
}
public static int sub(String num1, String num2){
int sub1 = Integer.parseInt(num1);
int sub2 = Integer.parseInt(num2);
return sub1 - sub2;
}
public static int mul(String num1, String num2){
int mul1 = Integer.parseInt(num1);
int mul2 = Integer.parseInt(num2);
return mul1 * mul2;
}
public static int div(String num1, String num2){
int div1 = Integer.parseInt(num1);
int div2 = Integer.parseInt(num2);
if (div2 == 0 || div1 == 0){
print("cant divide by zero");
return -1;
}
return div1 / div2;
}
}

64
src/com/company/Main.java
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@ -4,65 +4,47 @@ import java.util.Scanner;
public class Main {
@SuppressWarnings("InfiniteLoopStatement")
public static void main(String[] args)
{
public static void main(String[] args) {
int total = 0;
String num1;
String num2;
while (true) {
Scanner in = new Scanner(System.in);
print("Enter first number: ");
String num1 = in.nextLine();
print("please enter second number");
String num2 = in.nextLine();
print("Inputs complete");
print("Please input operator");
print("+ , - , * or x , /");
System.out.println("Enter first number: ");
num1 = in.nextLine();
if (num1.equals("ans") || num1.equals("total")) {
num1 = String.valueOf(total);
}
System.out.println("please enter second number");
num2 = in.nextLine();
if (num2.equals("ans") || num2.equals("total")) {
num2 = String.valueOf(total);
}
System.out.println("Inputs complete");
System.out.println("Please input operator");
System.out.println("+ , - , * or x , /");
String op = in.nextLine();
switch (op) {
case "+" -> {
int total = add(num1, num2);
total = Calc.add(num1, num2);
System.out.println(total);
}
case "-" -> {
int total = sub(num1, num2);
total = Calc.sub(num1, num2);
System.out.println(total);
}
case "*", "x" -> {
int total = mul(num1, num2);
total = Calc.mul(num1, num2);
System.out.println(total);
}
case "/" -> {
int total = div(num1, num2);
total = Calc.div(num1, num2);
System.out.println(total);
}
default -> print("Unexpected value: " + op + " ...restarting program");
default -> System.out.println("Unexpected value: " + op + " ...restarting program");
}
}
}
private static void print(String text){
System.out.println(text);
}
private static int add(String num1, String num2){
int add1 = Integer.parseInt(num1);
int add2 = Integer.parseInt(num2);
return add1 + add2;
}
private static int sub(String num1, String num2){
int sub1 = Integer.parseInt(num1);
int sub2 = Integer.parseInt(num2);
return sub1 - sub2;
}
private static int mul(String num1, String num2){
int mul1 = Integer.parseInt(num1);
int mul2 = Integer.parseInt(num2);
return mul1 * mul2;
}
private static int div(String num1, String num2){
int div1 = Integer.parseInt(num1);
int div2 = Integer.parseInt(num2);
if (div2 == 0 || div1 == 0){
print("cant divide by zero");
return -1;
}
return div1 / div2;
}
}