input - Java lwjgl keyboard handler -

i've created class takes lwjgl's keyboard input , turns list of strings keys being pressed.

public class keyhandler {      arraylist<string> keyspressed;      public keyhandler() {         keyspressed = new arraylist<string>();     }      public void checkkeys() {         while (keyboard.next()) {             string keystring = keyboard.getkeyname(keyboard.geteventkey());             if (!keyspressed.contains(keystring)) {                 keyspressed.add(keystring); // key has been pressed             } else {                 keyspressed.remove(keystring); // key has been released             }         }     }      public void runkeys() {     if (keyspressed.size() > 0) {         (string str : keyspressed) {             system.out.println("key handler got key:" + str);             // run class key         }     } else {         // no keys have been pressed     } }  } 

i'm trying figure out way 'runkeys' run class name, example.

w.java

public class w {      public static void exc() {         player.movez(10);     }  } 

the reason doing avoid having run through 50+ if statements check input

• create map<character, consumer<character>>.
• create class each character implements consumer<character> interface.
• store objects of classes in map.
• call consume on appropriate consumer object map using detected keystroke character.

hope helps.