QE Automation Rocks

The Reflection API allows Java code to examine classes and objects at run time.The new reflection classes allow you to call another class's methods dynamically at run time. With the reflection classes, you can also examine an instance's fields and change the fields' contents. The Reflection API consists of the java.lang.Class class and the java.lang.reflect classes: Field, Method, Constructor, Array, and Modifier. Example program: import java.lang.reflect.InvocationTargetException; import java.lang.reflect.Method; // calling method whose name we store in a variable public class ReflectionAPI { public static void main(String[] args) throws SecurityException, NoSuchMethodException, IllegalArgumentException, IllegalAccessException, InvocationTargetException { String x="sampleTest"; //String meth=read name from xls file Method method= ReflectionAPI.class.getMethod(x, String.class); method.invoke(method, "welcome"); System.out....

CollectionAPI: The Java Collections API's provide Java developers with a set of classes and interfaces that makes it easier to handle collections of objects. In a sense Collection's works a bit like arrays, except their size can change dynamically, and they have more advanced behaviour than arrays. Example program: import java.util.ArrayList; import java.util.Hashtable; public class CollectionAPI { /** * @param args */ public static void main(String[] args) { int names[] = new int[5]; ArrayList list = new ArrayList (); list.add("Ramu");//0 list.add("Venu");//1 list.add("Raju");//2 System.out.println(list.size()); for(int i =0; i table = new Hashtable (); table.put("name", "Hyderabad"); table.put("place", "Mumbai"); table.put("name", "Chenni"); System.out.println(table.get("name")); } }