Technical Interview Questions and Answers :: iGate
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'super' keyword in Java is a reference variable which is used to access parent class objects.
'this' keyword is a reference variable which is used to access current objects.
102 / 160
'static' is a keyword available in Java. The variable that is declared as static, is called as class variable. All instances share the same copy of the variable.
Eg.: static int y=1;
103 / 160
Iterator allows to traverse the collection and also it has methods which enables to obatin or remove elements. ListIterator adds the feature of traversing the list bi-directionally, also modify the elememts.
Eg.: Iterator itr = al.iterator();
while(itr.hasNext()) {}
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With Update Strategy : It becomes easier as DD_UPDATE does the work using update strategy transformation.
Without Update Strategy:
105 / 160
No Discussion on this question yet!
106 / 160
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107 / 160
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108 / 160
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109 / 160
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110 / 160
Hadoop is a part of the Apache project sponsored by Apache Foundation. It's an open source, Java-based programming framework that supports storage and processing of extremely large data sets in a distributed computing environment