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how to check if object already exists in a list
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edited Jul 18 at 18:25
jakob_a
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answered Aug 8 '10 at 16:31
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Data access object (DAO) in Java
...e diagram here:
http://www.oracle.com/technetwork/java/dataaccessobject-138824.html
Maybe a simple example can help you understand the concept:
Let's say we have an entity to represent an employee:
public class Employee {
private int id;
private String name;
public int getId() {
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What to do with commit made in a detached head
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How to add Options Menu to Fragment in Android
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Ryan M
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answered Nov 29 '11 at 10:29
KuffsKuffs
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How to open, read, and write from serial port in C?
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I wrote this a long time ago (from years 1985-1992, with just a few tweaks since then), and just...
How do you use a variable in a regular expression?
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jcubic
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answered Jan 30 '09 at 0:15
Eric Wendeli...
Check if image exists on server using JavaScript?
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answered Sep 16 '13 at 21:38
ajtrichardsajtrichards
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What does the exclamation mark do before the function?
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edited Mar 18 '17 at 11:47
Carles Alcolea
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How can I read input from the console using the Scanner class in Java?
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answered Aug 8 '12 at 19:29
Rune VikestadRune Vikestad
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What's the difference between equal?, eql?, ===, and ==?
...number".
– Kelvin
May 17 '13 at 21:18
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