I guess you’re looking for ArrayList. For example : ArrayList<String> listNodeContent= new ArrayList<String>(); //your code listNodeContent.add(current.getChild(“C”).getContent(0)); Then you can retrieve the content using different methods : ArrayList#get(int index), with an iterator (ArrayList#iterator()) or with a foreach loop : for(String tmp : listNodeContent){ System.out.println(tmp); } 6 solved Storing content in a buffer [closed]
The first println is trying to say I’m gonna sum numbers from 1 to 10 but be careful to add the even numbers as negative numbers So as the even numbers are negative, The code is trying to first check if it’s an even number by (j % 2 == 0) If it’s an even … Read more
In your else block in actionPerformed you exit before reaching validate(). The problem is probably the following: You are adding the numOweLbl to your UI, but you never set the text of it to totalOwed. Before you do container.add(numOweLbl) you need to set its text. numOweLbl.setText(totalOwed) solved Why aren’t my values transferring over
The first constructor: public Book(String bookname, String authorName) { mBookName = bookname; mAuthorName = authorName; mPageList = new ArrayList<>(); } Then you will have a new book without any page The second constructor: public Book(String bookname, String authorName, List<Page> pageList) { mBookName = bookname; mAuthorName = authorName; mPageList = pageList; } You will have a … Read more
Your if condition is not correct ! Your code should be : public static void main(String [] args){ BigInteger i = new BigInteger(“2”); double sqroot, cuberoot, fifthroot; while(true) { sqroot = Math.sqrt(i.floatValue()); cuberoot = Math.cbrt(i.floatValue()); fifthroot = Math.pow(i.floatValue(),1/5.0d); System.out.print(“i = “+i); if(Math.floor(sqroot)==sqroot && Math.floor(cuberoot)==cuberoot && Math.floor(fifthroot)==fifthroot){ break; } i= i.add(new BigInteger(“1”)); } System.out.println(i); } 1 … Read more
You need a method to get the name from the user. I presume you have that. And you need a folder within which to save the files (unless you want the user to specify folder as well). When users enter file names, they might type characters that are not allowed in file names. You must … Read more
You do not set next when you create your Nodes, so next is always null. This Node(final Object element, Node prevNode) { this.element = element; prevNode = this; } should be Node(final Object element, Node prevNode) { this.element = element; prevNode.next = this; } solved Erorr with the nullpointer
You are storing the dates in the SQL database as text strings, but then asking SQL to return values between to limits and expecting it to interpret those limits as dates when it hasn’t been told that they are dates and wouldn’t know how to interpret the text format as a date if it did … Read more
The variable firstname1 is a local variable. You can’t access it outside its scope – the method. What you can do is pass a copy of the reference to your subclass. Since you’re calling a static method, the easiest way is to pass the reference as an argument to the method call: @Test public static … Read more
Inside the SendEmailsToAllMembers you could store which emails have been successfully sent to. Repeat calls to the method could check if this email has already been sent successfully and therefore not resend it. 1 solved How to avoid resending emails or missing emails in this case? [closed]
Now that your code is properly formatted, you will probably notice an extra ; after the first catch block. 5 solved Cannot Run the below program of try and catch
Run it and you’ll see the result. What else you need? Read it. Ship it. Buy it. Read it. Box it. Read it. 1 solved Inheritance java explanation
Arrays.stream(“Monday,Monday,Friday,Friday”.split(“,”)) .distinct() .collect(Collectors.joining(“,”)); 4 solved How to cast a String as an Array then dedupe Array in Java? [closed]
From the documentation: Provides methods to convert internationalized domain names (IDNs) between a normal Unicode representation and an ASCII Compatible Encoding (ACE) representation. solved what is java.net.IDN class in 1.6 [closed]
That’s because import java.util.HashMap; Hashmap refers to the class, not the package. It reads that : Hashmap is a class found within the package of java.util Here’s the actual package and class in question: solved Java Package Name Validation