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Creating an array of objects in Java
... A[4];
...creates 4 A references, similar to doing this:
A a1;
A a2;
A a3;
A a4;
Now you couldn't do a1.someMethod() without allocating a1 like this:
a1 = new A();
Similarly, with the array you need to do this:
a[0] = new A();
...before using it.
...
What is a good Java library to zip/unzip files? [closed]
...ith the JDK and the Apache compression libs and I am unhappy with them for 3 reasons:
9 Answers
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Instance variables vs. class variables in Python
...rtelli
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What does “connection reset by peer” mean?
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edited Jul 19 '14 at 18:34
Marquis of Lorne
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Database Design for Tagging
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About ANDing: It sounds like you are looking for the "relational division" operation. This artic...
Postgres: INSERT if does not exist already
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edited Apr 30 at 13:19
a_horse_with_no_name
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How to flatten tree via LINQ?
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138
You can flatten a tree like this:
IEnumerable<MyNode> Flatten(IEnumerable<MyNode> ...
Programmatically get the version number of a DLL
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KrisKris
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How to make input type= file Should accept only pdf and xls
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answered Aug 27 '12 at 13:10
feeelafeeela
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Get table names using SELECT statement in MySQL
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393
To get the name of all tables use:
SELECT table_name FROM information_schema.tables;
To get...