Is java free for businesses?
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What are the parts of a method?
Why ArrayList class is not a synchronized class and why it is not a thread safe class? explain
You can create a string object as string str = “abc”; why cant a button object be created as button bt = “abc”;? Explain
How many ways can we create singleton class?
I want to control database connections in my program and want that only one thread should be able to make database connection at a time. How can I implement this logic?
What are the different types of java?
Will set allow duplicates in java?
Can two objects have same hashcode?
What are decalarations?
Which is best ide for java?
What is the purpose of using javap?
What are the steps involved to create a bean?