Interview

55. If I write System.exit(0); at the end of the try block, will the finally block still execute? No. In

3. What are wrapper classes? Java provides specialized classes corresponding to each of the primitive data types. These are called

3. What are wrapper classes? Java provides specialized classes corresponding to each of the primitive data types. These are called

25. Are the imports checked for validity at compile time? Example: will the code containing an import such as java.lang.ABCD

19. Can an application have multiple classes having main() method? Yes it is possible. While starting the application we mention

13. What if I write static public void instead of public static void? Program compiles and runs properly. 14. What

7. What is an Iterator? Some of the collection classes provide traversal of their contents via a java.util.Iterator interface. This

1. What is the difference between a constructor and a method? A constructor is a member function of a class

127. How does Java handle integer overflows and underflows? It uses those low order bytes of the result that can

121. To what value is a variable of the String type automatically initialized? The default value of an String type

115. What is constructor chaining and how is it achieved in Java ? A child object constructor always first needs

73. What do you understand by private, protected and public? These are accessibility modifiers. Private is the most restrictive, while

67. Which class is extended by all other classes? The Object class is extended by all other classes. 68. Which