Why singleton pattern is better than creating singleton class with static instance?
What is the file type?
What are the types of casting?
Write program to print Hello World and print each character address in that string and print how many times each character is in that string? Ex: H: 0 & 1 e:1 & 1 l :2,3,8 & 3 o:4,6 & 2 w:5 & 1 r: 7 & 1 d 9 & 1
v-model life cycle
I have a String s = java; What is the output when I say s.replaceAll('j', 'k'); Also what is the value of s after replacing?
How many types of operators are there?
Can a serialized object be transferred via network?
In case of inheritance what is the execution order of constructor and destructor?
Explain, why the constructor is required in implemented class?
what is function overloading in java?
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what is the difference between thread and runnable types? : Java thread
how session will be expired?