Mashin calc task

src/com/javarush/module2/lesson02/calc/MathRunner.java

@@ -1,11 +1,38 @@
 package com.javarush.module2.lesson02.calc;
 
+import com.javarush.module2.lesson02.calc.types.Var;
+import com.javarush.module2.lesson02.calc.types.VariableTypes;
+
 public class MathRunner {
-    public static void main(String[] args) {
-       Var left=new Scalar(3);
-       Var right=new Vector("[1,2,3,4]");
-//       Var right=new Scalar(2);
-        Var result = right.add(right);
-        System.out.println(result);
-    }
+	public static void main(String[] args) {
+		String[] arguments = {"[[1,2,3],[4,5,6]]","*","[1,2,3]"};
+		Var left = VariableTypes.getVar(arguments[ 0 ]);
+		String operation = arguments[ 1 ];
+		Var right = VariableTypes.getVar(arguments[ 2 ]);
+
+		Var result = null;
+		switch ( operation ) {
+			case "+":
+				result = left.add(right);
+				break;
+			case "-":
+				result = left.sub(right);
+				break;
+			case "*":
+				result = left.mul(right);
+				break;
+			case "/":
+				result = left.div(right);
+				break;
+			default:
+				System.out.println("Invalid operation");
+				break;
+		}
+
+		for ( int i = 0; i < arguments.length; i++ ) {
+			System.out.print(arguments[i] + " ");
+		}
+
+		System.out.println("= " + result);
+	}
 }

src/com/javarush/module2/lesson02/calc/api/Add.java

@@ -1,6 +1,6 @@
 package com.javarush.module2.lesson02.calc.api;
 
-import com.javarush.module2.lesson02.calc.Var;
+import com.javarush.module2.lesson02.calc.types.Var;
 
 public interface Add {
     Var add(Var other);

src/com/javarush/module2/lesson02/calc/api/Div.java

@@ -1,6 +1,6 @@
 package com.javarush.module2.lesson02.calc.api;
 
-import com.javarush.module2.lesson02.calc.Var;
+import com.javarush.module2.lesson02.calc.types.Var;
 
 public interface Div {
     Var div(Var other);

src/com/javarush/module2/lesson02/calc/api/Mul.java

@@ -1,6 +1,6 @@
 package com.javarush.module2.lesson02.calc.api;
 
-import com.javarush.module2.lesson02.calc.Var;
+import com.javarush.module2.lesson02.calc.types.Var;
 
 public interface Mul {
     Var mul(Var other);

src/com/javarush/module2/lesson02/calc/api/Operation.java

@@ -0,0 +1,5 @@
+package com.javarush.module2.lesson02.calc.api;
+
+public interface Operation extends Add, Sub, Mul, Div {
+
+}

src/com/javarush/module2/lesson02/calc/api/Sub.java

@@ -1,6 +1,6 @@
 package com.javarush.module2.lesson02.calc.api;
 
-import com.javarush.module2.lesson02.calc.Var;
+import com.javarush.module2.lesson02.calc.types.Var;
 
 public interface Sub {
     Var sub(Var other);

src/com/javarush/module2/lesson02/calc/CalcException.java → src/com/javarush/module2/lesson02/calc/exception/CalcException.java

@@ -1,4 +1,4 @@
-package com.javarush.module2.lesson02.calc;
+package com.javarush.module2.lesson02.calc.exception;
 
 public class CalcException extends RuntimeException {