How do I know if java is installed?
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What JNDI(Java Naming and Directory Interface) provides?
How many types of syncronization?
Can I import same package/class twice?
Why collection doesn’t extend cloneable and serializable interfaces?
Why arraylist is not synchronized in java example?
Can keyword be used as identifier?
What is matcher in java?
What is use of super keyword?
Does string isempty check for null?
What is JFC?
What is an association?
What is singleton class in java and how can we make a class singleton?