A java program for basic calculator operations

Utkarsh1520 · web-flow · commit f5a148fd4c05 · 2020-10-13T00:43:26.000+05:30
diff --git a/Basic Calculator Operations.java b/Basic Calculator Operations.java
@@ -0,0 +1,38 @@
+#Subscribed to CodeHouseIndia
+import java.util.Scanner;
+public class Calculator {
+public static void main(String[] args) {
+Scanner reader = new Scanner(System.in);
+System.out.print("Enter two numbers: ");
+// nextDouble() reads the next double from the keyboard
+double first = reader.nextDouble();
+double second = reader.nextDouble();
+System.out.print("Enter an operator (+, -, *, /): ");
+char operator = reader.next().charAt(0);
+double result;
+//switch case for each of the operations
+switch(operator)
+{
+case '+':
+result = first + second;
+break;
+case '-':
+result = first - second;
+break;
+case '*':
+result = first * second;
+break;
+case '/':
+result = first / second;
+break;
+// operator doesn't match any case constant (+, -, *, /)
+ 
+ 
+default:
+System.out.printf("Error! operator is not correct");
+return;
+}
+//printing the result of the operations
+System.out.printf("%.1f %c %.1f = %.1f", first, operator, second, result);
+}
+}
