Differentiate between == and equals().
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What is the main difference between java platform and other platforms?
primitive data types in Java ?
What do you meant by active and passive objects?
What is the program compilation process?
Why null interfaces are used in Java?
when i write string s1="java"; in one program(application) and string s2="java"; in another application on the same jvm will both objects s2,s2 will refer to same memory location where "java" is stored in string pool.
Can you explain the difference b/n abtract and interface with a good example,?In what cases we have use abtract and what case interface?
What is an example of a keyword?
What is java class writing rules?
What is static keyword?
Assume a thread has lock on it, calling sleep() method on that thread will release the lock?
Can we clone singleton object?