casting a java argument from String to LinkedList

Question

I have a java program called "run.java" which calls another program called "Main.java".

Main.java takes as an argument a LinkedList. So i should pass this LinkedList from run.java to Main.java

so, in Main.java, how can I cast the argument from string to LinkedList ?

You can't cast a String to a LinkedList :) IMO you have misunderstood something, I'd recommend telling us what you want to do (ex: I want to make a program that stores 10 strings in a LinkedList) or posting some example code so we can understand you better. — Simeon
– Simeon, Commented Mar 3, 2011 at 9:53

JB Nizet · Accepted Answer · 2011-03-03 10:00:26Z

6

If you want to transform an array of strings (String[] args) into a linked list, then use this code :

LinkedList<String> argsAsLinkedList = new LinkedList<String>(Arrays.asList(args));

But a method should almost never take a LinkedList as argument. It should take a List. Use interfaces rather than concrete classes for your arguments : it allows your method to work with other kinds of lists.

answered Mar 3, 2011 at 10:00

JB Nizet

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Julien Lebot · Accepted Answer · 2011-03-03 09:53:43Z

0

You will have to tokenize your String, have a look at the StringTokenizer class.

answered Mar 3, 2011 at 9:53

Julien Lebot

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