Does importing a package imports its sub-packages as well in java?
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Explain the difference between jvm and jre?
What is the use of static keyword in "public static void main()"
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Can you achieve runtime polymorphism by data members?
What is java in detail?
What is classname class in java?
What is string substring?
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?
Difference between Choice and a List?
How do you read a char in java?
How to synchonise HashMap
Can arraylist contain null values?
What string is utf8?