When should I use singleton?
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What is the difference between error and exception and explain in simple words not whatever is given in the book.
Which is bigger float or double?
What is the order of arraylist in java?
What all access modifiers are allowed for top class ?
How can we handle runtime exceptions? write one sample program? Can we write runtime exceptions beside the throws key word? if yes write sample program?
What is a double vs float?
What does the string method compareto () do?
Difference between Reader/Writer and InputStream/Output Stream?
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What is string and its types?
Can you add null to a list java?
When should I use singleton pattern?
What is covariant return type?