https://www.tutorialspoint.com/java/java_collections.htm Prior to Java 2, Java provided ad hoc classes such asDictionary, Vector, Stack,andPropertiesto store and manipulate groups of objects. Although these classes were quite useful, they lacked a central, unifying theme. Thus, the way that yo...
https://www.tutorialspoint.com/java/java_collections.htm Prior to Java 2, Java provided ad hoc classes such asDictionary, Vector, Stack,andPropertiesto store and manipulate groups of objects. Although these classes were quite useful, they lacked a central, unifying theme. Thus, the ...
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In the example below, we use the PHP Ds\Collection::copy() to create a shallow copy to this vector (collection) (["test_string", 1525, false]) −<?php $seq = new \Ds\Vector(["test_string", 1525, false]); echo "Original vector elements are: \n"; print_r($seq); $res = ...
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In the example below of PHP Ds\Collection::isEmpty() function, we create a new empty vector (collection) and invoke the isEmpty() function on it before and after adding elements to see the results −<?php $vect = new \Ds\Vector(); echo "Before adding elements: \n"; $res = $...
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It returns the value if it is found at a specified index or returns -1, if it is not found. 25 _.indexOf(array, value, [fromIndex]) It returns the last occurrence of the value in the array or returns -1, if it is not found. ...