Answer Posted / vikki

using parseInt() method for example

//String to primitive types
int iVal = Integer.parseInt(str);
long lVal = Long.parseLong(str);
float fVal = Float.parseFloat(str);
double dVal = Double.parseDouble(str);

Can we override singleton class?

965

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Why are lists ordered in java?

999

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What is proper subset?

954

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This abstract class is correct ? abstract class A { public abstract void Disp(); public abstract void B() { } public absract virtual C() { } }

977

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What is collection class in java? List down its methods and interfaces.

936

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What are autoboxing and unboxing? When does it occur?

928

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Name some OOPS Concepts in Java?

1050

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In a class implementing an interface, can we change the value of any variable defined in the interface?

1066

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Can we serialize arraylist in java?

990

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In the below example, what will be the output?

1012

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What is append function?

978

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What are the main features of java?

948

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What does nextint () do in java?

961

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What is difference between an object and a class?

1109

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What is a constructor overloading in java?

1022

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