What is a parameter in matrices?
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What is sleep method?
Is 'null' a keyword?
Is java platform independent?
explain about jre and jvm
When we should use serialization?
How are variables stored?
Is set ordered in java?
Why java is called not pure object oriented language?
7) Suppose there is Student class like class student { int age; string name; } We want to store these objects in a HashMap. Do we need to override any methods in Student class? If any which ones and why? what if i just override equals or just hashcode? what will be the results in both the cases?
What are 3 boolean operators?
What is a void method?
Can we start a thread twice in java?