
java - Getting the filenames of all files in a folder - Stack Overflow
First, you're dealing with IO, so look in the java.io package. There are two classes that look interesting: FileFilter and FileNameFilter. When I clicked on the first, it showed me that there was a a listFiles() method in the File class. And the documentation for that method says:
loops - Ways to iterate over a list in Java - Stack Overflow
The three forms of looping are nearly identical. The enhanced for loop:. for (E element : list) { . . . } is, according to the Java Language Specification, identical in effect to the explicit use of an iterator with a traditional for loop.
java - Creating a LinkedList class from scratch - Stack Overflow
Nov 1, 2010 · Note: It's a pretty basic implementation of a singly-linked-list. The 'T' type is a generic type placeholder. Basically, this linked list should work with any type that inherits from Object. If you use it for primitive types be sure to use the nullable class equivalents (ex 'Integer' for the 'int' type).
Sorting a list with stream.sorted() in Java - Stack Overflow
Java 8 provides different utility api methods to help us sort the streams better. If your list is a list of Integers(or Double, Long, String etc.,) then you can simply sort the list with default comparators provided by java. List<Integer> integerList = Arrays.asList(1, 4, …
How to select an item from a dropdown list using Selenium …
Oct 18, 2012 · How can I select an item from a drop down list like gender (eg male, female) using Selenium WebDriver with Java? I have tried this WebElement select = driver.findElement(By.id("gender")); List<
applet - Java Keyboard Keycodes list - Stack Overflow
Can anybody provide me with the Key Code integer list for individual keys used on the Keyboard for the KeyEvent class in java? I want to create a dropdown list of all the keyboard keys for the user to select. I need the list specific to Keyboard. The VK constants does not help in this case because I need a 'list' of Keys used on the Keyboard.
How to print out all the elements of a List in Java?
Apr 16, 2012 · System.out.println(list) should print all the standard java object types (String, Long, Integer etc). In case, if we are using custom object types, then we need to override toString() method of our custom object.
Remove duplicates from a list of objects based on property in Java 8
Apr 16, 2015 · In Java 8 and onward the comparingInt method is just a quick way to create a Comparator that compares int fields. If you want to add another field to the comparison you can use the thenComparing chained to the original compare so it would look something like comparingInt(Employee::getId).thenComparing(Employee::getName) .
List all files from a directory recursively with Java
Dec 29, 2022 · Assuming this is actual production code you'll be writing, then I suggest using the solution to this sort of thing that's already been solved - Apache Commons IO, specifically FileUtils.listFiles().
How to paginate a list of objects in Java 8? - Stack Overflow
Mar 26, 2015 · Given a java.util.List with n elements and a desired page size m, I want to transform it to a map containing n/m+n%m elements. Each map element shall contain m elements. Here's an example with int...