Explain thread life cycle in java?
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How do you do math powers in java?
How to display names of all components in a Container?
Can Java be said to be the complete object-oriented programming language
How do you reverse a string in java?
Explain what access modifiers can be used for variables?
What are the different types of data structures in java?
Is singleton thread safe in java?
Explain super keyword in java.
Iterator in the HashMap is fail-safe means what?
JVM responsibility?
How is tree Mirroring implemented?
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?