package reflection; public class Reflection { public static void main(String[] args) { // TODO Auto-generated method stub String x=(String) test("java.lang.String"); x="pk"; System.out.println(x); } public static Object test(String s) { try { System.out.println(Class.forName(s).getClass()); if(Class.forName(s).getClass().isInstance(String.class)) { System.out.println("true"); return new String(); } } catch (ClassNotFoundException e) { // TODO Auto-generated catch block e.printStackTrace(); } return s; } }