Data update

Task/Add-a-variable-to-a-class-instance-at-runtime/Java/add-a-variable-to-a-class-instance-at-runtime.java

@@ -0,0 +1,34 @@
+import java.util.HashMap;
+import java.util.Map;
+import java.util.Scanner;
+
+public final class AddVariableToClassInstanceAtRuntime {
+
+	public static void main(String[] args) {
+		Demonstration demo = new Demonstration();
+	    System.out.println("Create two variables at runtime: ");
+	    Scanner scanner = new Scanner(System.in);
+	    for ( int i = 1; i <= 2; i++ ) {	    	
+	        System.out.println("    Variable number " + i + ":");
+	        System.out.print("        Enter name: ");
+	        String name = scanner.nextLine();
+	        System.out.print("        Enter value: ");
+	        String value = scanner.nextLine();
+	        demo.runtimeVariables.put(name, value);
+	        System.out.println();
+	    }
+	    scanner.close();
+	
+	    System.out.println("Two new runtime variables appear to have been created.");
+	    for ( Map.Entry<String, Object> entry : demo.runtimeVariables.entrySet() ) {
+	    	System.out.println("Variable " + entry.getKey() + " = " + entry.getValue());
+	    }	
+	}
+
+}
+
+final class Demonstration {
+	
+	Map<String, Object> runtimeVariables = new HashMap<String, Object>();
+	
+}