What is the use of using enum to declare a constant?
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Can you access the private method from outside the class?
Can a class have more than one object?
Why there are some null interface in java? What does it mean?
Write a program to show whether a graph is a tree or not using adjacency matrix.
What is considered an anti pattern?
Explain the scope of a variable.
What is Three tier architecture. Can anyone explain with a Ordinary web application Project? (JSP,Servlets,JAVA,DAO) ?
What are the advantages of arraylist over arrays?
what is difference betwwen hashmap and hashtable ?
2) Suppose there are 5 directories having lot of files (say txt files) in each directory. 2 things :- 2.1) You want to search for filenames which have a particular pattern. 2.2) Out of these filtered files you want to search for a particular keyword or a search string. How can you achieve this?
To set the position and size of a component, which methods are used?
What is run time allocation?