Why do we use regex?
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Difference between process and thread?
What is aggregation and composition ?
System.out & System.in are final static data member of System class but we can change there reference through setOut() & setIn() method how...
what is domain object
Add a value x to array from index l to r where 0 <= l <= r <= n-1
What are java packages? What's the significance of packages?
What are the limitations of procedural programming approach?
What is the purpose of lambda expressions?
Can constructor be static or final?
What is the difference between serialization and deserialization?
system.out.println(1 + 3);
Explain the features of interfaces in java?