public void processEvent(int type, int param) { System.out.println(""+type+":"+param); if (type == Display.KEY_RELEASED_EVENT) { switch(param){ case Display.KEY_DOWN: (処理) break; ・・・ case Display.KEY_IAPP: case Display.KEY_CLEAR: System.out.println("Clear"); break; default: System.out.println(param); } } }