Solved

java function for pass values back

Posted on 2006-11-06
5
231 Views
Last Modified: 2010-03-31
Hello,

guess i stocked by a simple question.

Suppose in a java class:
public class testName{

LinkedList list1, list2, list3

 list1 = value1;
 list2 =value2;
 list3 = value3;

private void searchList (list1, list2, list3 ){
LinkedList list1temp = list1,
                 list2temp = list2,
                 list3temp = list3;

// do some process for the three lists, then their there values will be changed

}

my question is: how can i pass the changed values back for list1, list2, list3, if i use return statement , only one value can be returned at one time.

Thanks very much for your reply,

lilyyan
0
Comment
Question by:lilyyan
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 3
  • 2
5 Comments
 
LVL 9

Accepted Solution

by:
owenli27 earned 80 total points
ID: 17883734
They are passed by reference and you don't have to return them back to where you call fucntion. They are updated after void function end.
0
 

Author Comment

by:lilyyan
ID: 17883802
hi, that's what i'm thinking.

when you say "passed by reference " , this can only be applyed to certain data types, not for primary data type, for example: int, right?
0
 
LVL 9

Expert Comment

by:owenli27
ID: 17883863
correct
0
 
LVL 9

Expert Comment

by:owenli27
ID: 17883883
Java manipulate objects by reference, and all object variables are references.
0
 

Author Comment

by:lilyyan
ID: 17883991
clear : )
0

Featured Post

Free Tool: Subnet Calculator

The subnet calculator helps you design networks by taking an IP address and network mask and returning information such as network, broadcast address, and host range.

One of a set of tools we're offering as a way of saying thank you for being a part of the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
servlet example 11 76
java imports not found 4 71
Java class and jar 3 59
Which is best Image Resizing Web service 11 39
Java contains several comparison operators (e.g., <, <=, >, >=, ==, !=) that allow you to compare primitive values. However, these operators cannot be used to compare the contents of objects. Interface Comparable is used to allow objects of a cl…
Introduction This article is the first of three articles that explain why and how the Experts Exchange QA Team does test automation for our web site. This article explains our test automation goals. Then rationale is given for the tools we use to a…
Viewers will learn one way to get user input in Java. Introduce the Scanner object: Declare the variable that stores the user input: An example prompting the user for input: Methods you need to invoke in order to properly get  user input:
Viewers will learn about the regular for loop in Java and how to use it. Definition: Break the for loop down into 3 parts: Syntax when using for loops: Example using a for loop:
Suggested Courses

734 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question