Java tutorial
//package com.java2s; public class Main { public static Object getObject(String type, String value) throws Exception { type = type.toLowerCase(); if ("boolean".equals(type)) return Boolean.valueOf(value); if ("byte".equals(type)) return Byte.valueOf(value); if ("short".equals(type)) return Short.valueOf(value); if ("char".equals(type)) if (value.length() != 1) throw new NumberFormatException("Argument is not a character!"); else return Character.valueOf(value.toCharArray()[0]); if ("int".equals(type)) return Integer.valueOf(value); if ("long".equals(type)) return Long.valueOf(value); if ("float".equals(type)) return Float.valueOf(value); if ("double".equals(type)) return Double.valueOf(value); if ("string".equals(type)) return value; else { Object objs[] = new String[] { value }; return Class.forName(type).getConstructor(new Class[] { java.lang.String.class }).newInstance(objs); } } }