Accepting and Returning Arrays in Java - Can we both pass and return arrays at the same time?
(Page 5 of 5 )
Why not? You can both pass and return arrays from within a single method. You may need to change the code to something like the following:
public int[] getDoubledValues(int[] p) {
int[] b = new int[p.length];
for(int i=0;i<p.length;i++) {
b[i] = p[i] + p[i];
}
return b;
}
You can observe the above declaration of the method:
public int[] getDoubledValues(int[] p) {
It is accepting “array as parameter” and “returning an array.” You may also need to modify the testing code as follows:
private void btnShowActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:
MyCalc obj2 = new MyCalc();
int[] ar = {12,23,34,45,56,67};
obj2.setValues(obj2.getDoubledValues(ar));
int r;
r = obj2.getSum();
this.lblMsg2.setText("Sum = " + String.valueOf(r));
}
Even though I demonstrated how to work only with integer arrays, the same applies for almost any type of data type (including strings). I didn’t include this section in the downloadable, but you can modify the code accordingly and test it yourself.
The entire code for this article is freely available in the form of a zip file. That downloadable solution was developed using NetBeans 4.1 IDE together with Microsoft Windows 2003 Standard Edition. I didn’t really test it in any other version or platform. Please follow the respective platform documentation to get it working. This series is dedicated to the beginners who wanted to work with NetBeans IDE.
I shall cover working with objects of arrays and communicating with methods in an upcoming article. Stay tuned till then!
Any doubts, bugs, errors, suggestions, feedback etc. are highly appreciated at jag_chat@yahoo.com.
| DISCLAIMER: The content provided in this article is not warranted or guaranteed by Developer Shed, Inc. The content provided is intended for entertainment and/or educational purposes in order to introduce to the reader key ideas, concepts, and/or product reviews. As such it is incumbent upon the reader to employ real-world tactics for security and implementation of best practices. We are not liable for any negative consequences that may result from implementing any information covered in our articles or tutorials. If this is a hardware review, it is not recommended to open and/or modify your hardware. |
/ 10 
