What are predicates in java 8?
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what is interface in java? Explain
Explain about static imports in java?
What is the purpose of using java.lang.class class?
Why charat is used in java?
What is Mutex (Mutual Exclusion Object) ?
What are the differences between throw and throws?
I have a sorting issue with a Hashmap. My constraint is that I MUST use the Hashmap and work with existing code. I do a database query and place the results in a Hashmap. When I iterate thru the Hashmap, it loses the original alphabetical sorting done by the database. So, my problem is that I must sort the results coming out of the Hashmap which is then placed into another class.
Explain listiterator and methods in listiterator?
How can you set an applet’s height and width as a percentage?
Suppose i have two threads t1 and t2 are running.How the main thread will know that the two threads t1,t2 execution has completed?
Can a static class implement an interface?
What things should be kept in mind while creating your own exceptions in java?