tostring

Ok guys, so I am trying to learn how to print out a linked list. I have all the methods that I would need to use for the list, but I can't figure out how to display the values of the nodes. Right now there is nothing in my main method because I kept getting errors trying to call non static methods in the main. I have a toString method that displays the contents of the list. How would I go about calling this toString to display the value of each node? Any advice will be greatly appreciated. Here is the node class: public class LinkedListNode { private int data; private LinkedListNode next;

I would like to have my own implementation of the toString() method for an ArrayList in Java. However, I can't get it working even though I added my toString() like this to the class that contains the ArrayList. @Override public String toString() { String result = "+"; for (int i = 0; i < list.size(); i++) { result += " " + list.get(i); } return result; } When I call my ArrayList like this list.toString() , I still get the default representation. Am I missing something? You should do something like public static String listToString(List<?> list) { String result = "+"; for (int i = 0; i < list

A lead developer on my project has taken to referring to the project's toString() implementations as "pure cruft" and is looking to remove them from the code base. I've said that doing so would mean that any clients wishing to display the objects would have to write their own code to convert the object to string, but that was answered with "yes they would". Now specifically, the objects in this system are graphic elements like rectangles, circles, etc and the current representation is to display x, y, scale, bounds, etc... So, where does the crowd lie? When should you and when shouldn't you

When I do System.out.println(map) in Java, I get a nice output in stdout. How can I obtain this same string representation of a Map in a variable without meddling with standard output? Something like String mapAsString = Collections.toString(map) ? BalusC Use Object#toString() . String string = map.toString(); That's after all also what System.out.println(object) does under the hoods. The format for maps is described in AbstractMap#toString() . You can also use google-collections (guava) Joiner class if you want to customize the print format 来源： https://stackoverflow.com/questions/2828252/map

I am aware of the System.TimeZone class as well as the many uses of the DateTime.ToString() method. What I haven't been able to find is a way to convert a DateTime to a string that, in addition to the time and date info, contains the three-letter Time Zone abbreviation (in fact, much the same way StackOverflow's tooltips for relative time display works). To make an example easy for everyone to follow as well as consume, let's continue with the StackOverflow example. If you look at the tooltip that displays on relative times, it displays with the full date, the time including seconds in twelve