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What is final, finally and finalize ?

July 13, 2021

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July 13, 2021

2 Min Read

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Answer : Final is used to apply limitations on class, method and variable…

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What is static and dynamic binding in Java ?

July 13, 2021

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July 13, 2021

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Answer : The binding which can be determined at compile time by compiler…

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How HashMap Works in Java ?

July 13, 2021

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July 13, 2021

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Answer : HashMap is one of the most widly used implementation of Map to store key-value pairs…

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What is Polymorphism in Java ?

July 13, 2021

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July 13, 2021

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Answer : Polymorphism in Java is a concept in different ways…

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What is the purpose of method overriding in java where we are completely re-defining a inherited method ?

July 13, 2021

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July 13, 2021

1 Min Read

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Answer : Exception in Java represents that problem arises during the execution of the program…

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How OOPS concept is achieved in Java ?

July 13, 2021

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July 13, 2021

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Answer : The following stages are the concept of oops achieved in Java…

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Difference between JDBC and Hibernate ? Give one sample based on the variance ?

July 13, 2021

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July 13, 2021

1 Min Read

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Answer : JDBC(Java Database Connectivity) is an API which is used to access database…

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Explain the struts-configuration file ?

July 13, 2021

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July 13, 2021

1 Min Read

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Answer : The struts-config.xml configuration file is a link…

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How to print a message to console without using main() function ? (do not use even static blocks also)

July 13, 2021

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July 13, 2021

1 Min Read

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Answer : You could define a custom class loader…

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What is class/object diagram ?

July 13, 2021

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July 13, 2021

1 Min Read

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Answer : A class is an entity that determines how an object…

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What is an AICA abend ?

July 13, 2021

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July 13, 2021

1 Min Read

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Answer : A task has been executing for longer than the runaway time…

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What is an AEY9 abend ?

July 13, 2021

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July 13, 2021

1 Min Read

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Answer : The AEY9 abend can occur for the following reasons…

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What is the use of DSECT parameter in BMS ?

July 13, 2021

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July 13, 2021

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Answer : DSECT is the parameter used for creating a symbolic map…

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When you do a START, what will the value of EIBCALEN ?

July 13, 2021

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July 13, 2021

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Answer : Value of Eibcalen=0…

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What is the process to perform an incremental data load in sqoop ?

July 12, 2021

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July 12, 2021

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Answer : Sqoop provides an incremental import mode.

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What is commodity hardware ?

July 12, 2021

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July 12, 2021

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Answer : Commodity hardware is a low-cost system identified …

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What are the features of Apache HBase ?

July 12, 2021

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July 12, 2021

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Answer : Linear and modular scalability…

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Difference between Hive and HBase ?

July 12, 2021

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July 12, 2021

1 Min Read

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Answer : Hive is a datawarehousing package built on the top of Hadoop…

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What are the different configuration files in Hadoop ?

July 12, 2021

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July 12, 2021

1 Min Read

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Answer : hadoop-env.sh,core-site.xml,hdfs-site.xml…

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What are the different types of file permissions in HDFS ?

July 12, 2021

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July 12, 2021

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Answer : Hadoop distributed file system (HDFS) uses a specific permissions…

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