How to read and write image from a file ?
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What is java instanceof operator?
Can I overload to string method
what is jdk1.5 features?
Explain which of the following methods releases the lock when yield(), join(),sleep(),wait(),notify(), notifyall() methods are executed?
Under what conditions is an object’s finalize() method invoked by the garbage collector?
methods in Applet?
what is a static block?
What is the need to implement Serializable interface (with no methods) for objects which are to be serialized ? We can write our own functionality which writes objects to streams then why we need to implement and tell JVM that which objects can be serialized.
what is meant by Byte code concept in Java?
Why java is used everywhere?
Does isempty check for null?
how and when compiler knows that the Java code throws the checked Exception.