JAVA Interview Questions and Answers

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Which of the following theme comes bundled with struts 2?

asked Nov 10, 2023 in JAVA by GeorgeBell

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What are the Struts2 error message keys that can come during file uploading process?

asked Nov 10, 2023 in JAVA by GeorgeBell

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Which of the following is correct about the Model Objects?

asked Nov 10, 2023 in JAVA by GeorgeBell

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Which of the following can be achieved using interceptors?

asked Nov 10, 2023 in JAVA by GeorgeBell

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Which of the following is not a part of Struts architecture?

asked Nov 10, 2023 in JAVA by GeorgeBell

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What is the purpose of breakpoints in debugging?

asked Oct 6, 2023 in JAVA by GeorgeBell

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How to convert a List of objects into a Map by considering duplicated keys and store them in sorted order?

asked Aug 4, 2023 in JAVA by DavidAnderson

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How to convert a list of objects to a Map in Java 8 by handling duplicate keys?

asked Aug 4, 2023 in JAVA by DavidAnderson

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How to use map to convert object into Uppercase in Java 8?

asked Aug 4, 2023 in JAVA by DavidAnderson

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How to sort Collection in Java 8?

asked Aug 4, 2023 in JAVA by DavidAnderson

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How to check if list is empty in Java 8 using Optional, if not null iterate through the list and print the object?

asked Aug 4, 2023 in JAVA by DavidAnderson

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What is the purpose of garbage collection in Java, and when is it used?

asked Jul 3, 2023 in JAVA by Robin

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What is the purpose Class.forName method?

asked Jul 3, 2023 in JAVA by Robin

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What is the design pattern that Java uses for all Swing components?

asked Jul 3, 2023 in JAVA by Robin

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How are the JSP requests handled?

asked Jul 3, 2023 in JAVA by Robin

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What do you know about the big-O notation and can you give some examples with respect to different data structures?

asked Jul 3, 2023 in JAVA by Robin

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What are Expressions?

asked Jul 3, 2023 in JAVA by Robin

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What is the difference between processes and threads?

asked Jul 3, 2023 in JAVA by Robin

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What are the Data Types supported by Java? What is Autoboxing and Unboxing?

asked Jul 2, 2023 in JAVA by rajeshsharma

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What are the basic interfaces of Java Collections Framework?

asked Jul 2, 2023 in JAVA by rajeshsharma

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How HashMap works in Java?

asked Jul 2, 2023 in JAVA by rajeshsharma

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What is an Java Applet?

asked Jul 2, 2023 in JAVA by rajeshsharma

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What is an Iterator?

asked Jul 2, 2023 in JAVA by rajeshsharma

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When does an Object becomes eligible for Garbage collection in Java ?

asked Jul 2, 2023 in JAVA by rajeshsharma

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What is the importance of finally block in exception handling?

asked Jul 2, 2023 in JAVA by rajeshsharma

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What does the “static” keyword mean? Can you override private or static method in Java?

asked Jul 2, 2023 in JAVA by rajeshsharma

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asked Jul 2, 2023 in JAVA by rajeshsharma

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What does System.gc() and Runtime.gc() methods do?

asked Jul 2, 2023 in JAVA by rajeshsharma

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What are Directives?

asked Jul 2, 2023 in JAVA by rajeshsharma

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What is a JSP Page?

asked Jul 1, 2023 in JAVA by sharadyadav1986

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