Docstoc

Your first Java lab

Document Sample
Your first Java lab Powered By Docstoc
					Your second Java lab (10 bonus points for this lab) Read all of these instructions before beginning the exercises.
1. Make sure you have a browser running in one of your desktops. Open your browser, and go to the web page http://java.sun.com/j2se/1.4.1/docs/api/index.html. This is a link to documentation for the standard Java classes. TASK 1 (5 points) 2. Open TextPad, type the following: import javax.swing.*; public class SimpleTrig { public static void main (String [] args) { // Please insert your code here } } - Save it as “SimpleTrig.java” in your c:\Document & Setting\<your account> 3. Modify this class by inserting codes which: - Prompt the user for a value of an angle (in degrees). E.g: Please enter angle (in degree). Please use JOptionPane for this. - Compute sin and cosine of this angle. - Print out the results of this angle’s sin and cosine on the screen. Hint. Use Math.cos and Math.sin for computing cosine and sin, respectively. Please look these two methods over in the documentation of Math class. 4. Compile your modified code by choosing Tools -> Compile Java in Textpad 5. Run your code by choosing Tools -> Run Java Application 6. Test your code with angle = 0, a= 90 (degrees) and a=180 (degrees) TASK 2 (5 points) 7. Open TextPad, type the following: import javax.swing.*; public class SecondsConvert { public static void main (String [] args) { // Please insert your code here } } - Save it as “SecondsConvert.java” in your c:\Document & Setting\<your account> 8. Modify this class by inserting codes which: - Prompt the user for a value of seconds. Please use JOptionPane for this task. - Converts this value into the equivalent minutes and seconds. For example: the user enters 120 (seconds), the output would be: 120 seconds = 2 minutes and 0 seconds - Print out the result on the screen. 9. Compile your modified code by choosing Tools -> Compile Java in Textpad 10. Run your code by choosing Tools -> Run Java Application 11. Test your code with seconds = 120, seconds= 150 and seconds=0 SUBMISSION 12. Email to: nguyenh@uww.edu both SimpleTrig.java and SecondsConvert.java by Sunday 11:59pm at the latest.


				
DOCUMENT INFO
Shared By:
Categories:
Stats:
views:18
posted:11/29/2009
language:English
pages:1
Jun Wang Jun Wang Dr
About Some of Those documents come from internet for research purpose,if you have the copyrights of one of them,tell me by mail vixychina@gmail.com.Thank you!