What is the difference between array list and vector in java?

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What are the practical benefits, if any, of importing a specific class rather than an entire package (e.g. Import java.net.* Versus import java.net.socket)?

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Hi Every One I Have Small Doubt Please answer This???????????????????????????? I Want to use AbstractList class methods(java.util.AbstractList) My Program is import java.util.*; class DemoOne extends AbstractList { public static void main(String[] args) { AbstractList a=new DemoOne();//This One is Correct?? DemoOne a1=new DemoOne();//This One is Correct?? Both Are Not Working System.out.println("Hello World!"+a); System.out.println("Hello World!"+a1); } } Error IS: DemoOne.java:2: DemoOne is not abstract and does not override abstract method get(int) in java.util.AbstractList class DemoOne extends AbstractList AnyOne can Please Provide The Solution????????????????????????? Plzzzzzzz

3 Answers  

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Difference between error and exception

3 Answers   Nous, TCS,

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What is the purpose of static keyword in java?

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what is marker interface ? what is the necessity of it?

5 Answers   Accenture, Newgen,

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What are the two categories of data types in the java programming language?

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how can i connect to database in a applet ?

1 Answers  

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Does java set allow duplicates?

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What is the differences between heap and stack memory in java? Explain

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what is main purpose of abstract class?

7 Answers  

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What is a key in java?

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