What is the technique adopted to create an immutable class?
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What is the r character?
what do you mean by java annotations?
How hashmap increases its size in java?
Explain a few methods of overloading best practices in java?
How can we make a class singleton?
What is nested class?
Is there any way to skip finally block of exception even if some exception occurs in the exception block?
What is a “stateless” protocol ?
Under what circumstances an object reference be cast to an interface reference?
Define a java class.
What is the output of the following Java program? class Main { public static void main(String args[]){ final int i; i = 10; System.out.println(i); } } 10. What is the output of the following Java program? class Main { public static void main(String args[]){ final int i; i = 10; System.out.println(i); } }
Why singleton is not thread safe?