Answer Posted / arun

System is a class provided by package java.lang


println() is a method of class Printstream provided by
package java.io

out is output stream to which value and objects will be
printed.

Does java isempty check for null?

1040

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What is a parent class in java?

1057

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What should I import for arraylist in java?

1093

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How can we run a java program without making any object?

1088

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What is meant by oops concept in java?

1050

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Can a boolean be null java?

1028

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What is double data type?

986

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Can a top level class be private or protected?

1095

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What is an array in java?

1281

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Can we clone singleton class in java?

1013

---

Does list maintain insertion order java?

965

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Why do we need array in java?

1054

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Is logger a singleton?

1014

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Why to use nested classes in java? (Or) what is the purpose of nested class in java?

1121

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What is a java object and java application?

1088

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