Difference between class#getinstance() and new operator ?

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What is ‘has a’’ relationship in java?

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Is it safe for adding 10,00,000 records/objects to HashMap?, i.e is it safe to add millions of objects to HashMap?

2 Answers  

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Why can't we override private static methods?

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What is string length in java?

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What is the size of integer?

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Difference between hashCode() & equals()?

3 Answers   HCL,

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Can an interface have a class?

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What is the purpose of sizeof operator?

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what value will be return by the read() method once it reaches the end-of-file? a. Throws EOException b. Return null c. Return -1 d. Read method return nothing, because it is void method

1 Answers  

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List some important features of java 10 release?

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I declared main() method as private. But it still running and displaying the output. Please Answer it . Code Snippet as Below: import java.io.*; class over { private static void main(String[] args) { int high = Integer.MAX_VALUE; int overflow = high + 1; int low = Integer.MIN_VALUE; int underflow = low - 1; System.out.println(high + "\n" +overflow +"\n"+ low +"\n"+underflow); //System.out.println(overflow); //System.out.println(low); //System.out.println(underflow); } }

4 Answers   Cap Gemini,

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