Use map to go out if Else_ code elevation

Import Java.util.HashMap;

Import Java.util.Map;
	public class Test {static Map<string, operate> operates = new hashmap<string, operate> ();
		static {operates.put ("upper", New Upperoperate ());
		Operates.put ("Lower", New Loweroperate ());
		Operates.put ("reverse", New Reverseoperate ());
	Operates.put ("Removeblank", New Removeblankoperate ());
		public static void Main (string[] args) {String Operatetype = "Removeblank";
		
		String content = "Love coding!";
		Operate Operate = Operates.get (Operatetype);
			if (operate!= null) {String result = operate.handle (content);
		SYSTEM.OUT.PRINTLN (result);

}} interface Operate {public string handle (string content);} /** * Capital Operation */class Upperoperate implements Operate {@Override public string handle (string content) {if content
		= = null) {return content;
	return Content.touppercase (); }/** * Lowercase operation/class Loweroperate implements Operate {@Override public string handle (string ContenT) {if (content = = null) {return content;
	return Content.tolowercase (); }/** * Reverse operation */class Reverseoperate implements Operate {@Override public string handle (string content) {if (content = = null)
		{return content;
	Return to new StringBuffer (content). Reverse (). toString (); 
		}/** * Remove whitespace operation/class Removeblankoperate implements Operate {@Override public string handle (string content) {
		if (content = = null) {return content;
	Return Content.replaceall ("\\s*|\t|\r|\n", ""); }
	
}