Create Simple Calculator in JAVA

Simple Calculator in JAVA

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+import java.util.*;
+public class SimpleCalculator{
+    public static double add(double x, double y){
+        return x+y; 
+    }
+    public static double subtract(double x, double y){
+        return x-y;
+    }
+    public static double mul(double x, double y){
+        return x*y;
+    }
+    public static double div(double x, double y){
+        return x/y;
+    }
+    public static double mod(double x, double y){
+        return x%y;
+    }
+    public static void main(String[] args) {
+        System.out.println("Simple Calculator:");
+        Scanner ob = new Scanner(System.in);
+        System.out.println("Enter first number: ");
+        double a = ob.nextDouble();
+        System.out.println("Enter second number: ");
+        double b = ob.nextDouble();
+
+        System.out.println("Addition of "+a+" and "+b+" is "+ add(a,b));
+        System.out.println("Subtraction of "+a+" and "+b+" is "+ subtract(a,b));
+        System.out.println("Multiplication of "+a+" and "+b+" is "+ mul(a,b));
+        System.out.println("Division of "+a+" and "+b+" is "+ div(a,b));
+        System.out.println("Mod of "+a+" and " +b+ " is "+mod(a,b));
+        ob.close();
+    }
+}