This week's book giveaway is in the Design forum.
We're giving away four copies of Design for the Mind and have Victor S. Yocco on-line!
See this thread for details.
Win a copy of Design for the Mind this week in the Design forum!
  • Post Reply
  • Bookmark Topic Watch Topic
  • New Topic

Main method

 
Sen George
Ranch Hand
Posts: 76
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Is the parameter String[] in the main method of a public class required by language design or is it based on other logic?

Please advise.
 
Leandro Melo
Ranch Hand
Posts: 401
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Hello.

Regarding the main method which is the entry point of the application, the String[] argument is required because of a design choice. It's just a standard way to pass input arguments to the application.
 
Bob Ruth
Ranch Hand
Posts: 320
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Yeah, I think it just comes from a long LONG legacy with C. When you type in parameters they are often treated as character groups....or... words. And an easy way to pass those is as strings in an array.
 
Kaydell Leavitt
Ranch Hand
Posts: 689
Eclipse IDE Firefox Browser Mac OS X
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Is the parameter String[] in the main method of a public class required by language design or is it based on other logic?


Java allows overloading of methods. To determine a method signature the name of the method must match and the type and the order of the parameters must match. For a main method to be an entry-point, it must be called "main" and the paramter list must be one parameter, a String array for the main method to be eligible to be an entry-point.
 
  • Post Reply
  • Bookmark Topic Watch Topic
  • New Topic