initial commit

src/main/java/io/tswf/dima/CalculatorApp.java

@@ -0,0 +1,52 @@
+package io.tswf.dima;
+
+import java.util.Scanner;
+
+public class CalculatorApp {
+    public static void main(String[] args) {
+        Scanner scanner = new Scanner(System.in);
+        float number1 = scanner.nextFloat();
+        String operation = scanner.next();
+        float number2 = scanner.nextFloat();
+        System.out.print("Ответ:");
+        String a = "+";
+        String b = "-";
+        String c = "*";
+        String d = ":";
+        String e = "^";
+
+        if( operation != a && operation != b && operation != c && operation != d && operation != e)  {
+            System.out.println("ошибка");
+        }
+
+        if (":".equals(operation)) {
+            if (number2 != 0) {
+                float division = number1 / number2;
+                System.out.println(division);
+            } else {
+                System.out.println("На 0 делить нельзя");
+            }
+        }
+
+        if ("+".equals(operation)) {
+            float addition = number1 + number2;
+            System.out.println(addition);
+        }
+
+        if ("-".equals(operation)) {
+            float subtraction = number1 - number2;
+            System.out.println(subtraction);
+        }
+
+        if ("*".equals(operation)) {
+            float multiplication = number1 * number2;
+            System.out.println(multiplication);
+        }
+        if ("^".equals(operation)) {
+            double power = Math.pow(number1, number2);
+            System.out.println(power);
+
+
+        }
+    }
+}