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How do getters and setters work?

... 127 Tutorial is not really required for this. Read up on encapsulation private String myField; //"p...
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quick random row selection in Postgres

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ERROR 1452: Cannot add or update a child row: a foreign key constraint fails

... 178 Taken from Using FOREIGN KEY Constraints Foreign key relationships involve a parent table t...
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What is the purpose of python's inner classes?

... Quoted from http://www.geekinterview.com/question_details/64739: Advantages of inner class: Logical grouping of classes: If a class is useful to only one other class then it is logical to embed it in that class and keep the two together. Nesting such "helper classes" makes...
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Why is the shovel operator (

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What is the proper way to format a multi-line dict in Python?

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What is object slicing?

... | edited May 11 '16 at 7:47 ForceBru 32k1010 gold badges4949 silver badges7272 bronze badges answered...
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How to save a plot as image on the disk?

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Does MySQL index foreign key columns automatically?

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The first day of the current month in php using date_modify as DateTime object

... answered Feb 23 '12 at 14:17 Etienne DupuisEtienne Dupuis 12k66 gold badges4242 silver badges5656 bronze badges ...