Given following code, what will be the output: import java.lang.reflect.Method; class Bar { private int bar(int a) { return a * a; } } public class Foo { public static void main(String[] args) { try { Bar bar = new Bar(); Method method = bar.getClass().getDeclaredMethod("bar", int.class); method.setAccessible(true); System.out.println(method.invoke(bar, new Integer(5))); } catch (Exception e) { e.printStackTrace(); System.out.println("Error"); } } }

Interfaces are useful for...

The Object.wait() method:

Which will legally declare, construct, and initialize an array?

A java class which extends another class is usually described with the word:

Finally is used to....

what is order of preference in method overloading

Given a class containing the following pieces of code: public static <T> List getList() { return new ArrayList<T>(); } // ... List<?> list = new ArrayList<Integer>(); Adding which of the following lines would cause the class to not compile?

how java is platform independent?

The JVM allows programmers to manipulate the registers of the underlying system

which of the following is correct syntax of varargs