importjava.util.List; publicclassArrayListLengthMain{ publicstaticvoidmain(Stringargs[]) { List<String>countryList=newArrayList<>(); countryList.add("India"); countryList.add("China"); countryList.add("Bhutan"); countryList.add("Nepal"); System.out.println("Size of Country List is: "+cou...
In this example, we have a list of integers that we want to sort in ascending order. We use theCollections.sort()method to sort the list, and then print the sorted list to the console. The output shows the list sorted in ascending order. This is a basic way to sort a list in Jav...
5. Using Java 9+ List.of() and new ArrayList In Java 9 and later, you can useList.of()to create an immutable list and then pass it to theArrayListconstructor if you need a mutable list. importjava.util.ArrayList; importjava.util.List; publicclassArrayListExample{ publicstaticvoidmain(Str...
Unlike C/C++ where we can use sizeof() method to get an object size in bytes, there’s no true equivalent of such method in Java. In this article, we’ll demonstrate how we can still get the size of a particular object. 2. Memory Consumption in Java Although there is no sizeof ...
for(inti=0;i<gadgetList.size();i++){ System.out.println(gadgetList.get(i)); } The given output indicates that we have successfully displayed the list values with the help of the “for” loop: Method 3: Print a List in Java Using for-each Loop ...
voidjava.util.stream.Stream.forEach(Consumer<? super String> action) performs an action for each element of this stream. packagecrunchify.com.tutorials; importjava.util.*; /** * @author Crunchify.com * How to iterate through Java List? Seven (7) ways to Iterate Through Loop in Java. ...
In the following example, we are going to filter a list with Eclipse Collections. Eclipse Collections is a collections framework for Java. It has JDK-compatible List, Set and Map implementations with a rich API, additional types not found in the JDK like Bags, Multimaps and set of utility ...
Here is an example that demonstrates how you can use Files.size() from Java's NIO API to get the file size: try { // get file size in bytes long size = Files.size(Paths.get("logo.png")); // convert size to KB/MB double kb = size / 1024.0; double mb = kb / 1024.0; //...
Get First Element From the List in Java We can use the methodget()to get a specific element from a list. In this method, we need to provide the index of the specific element. Let’s have an example. We will extract the first element from the list, and to get it, we need to fol...
Create a Non-Empty List of Fixed Size in Java We can also create a non-empty list of fixed size. If so, operations like add, remove will not be supported. import java.util.*; public class myClass { public static void main(String args[]) { List<Integer> list = Arrays.asList(1, ...