12/23/2023 0 Comments Iterate hashmap java![]() ![]() The first while loop will have the index of i and then the second loop will have the index of j but j is to i before the loop begins. I was going to create two Iterators, one i and another j, and two loops. ![]() HashMap's Iterator to prevent concurrent modification. But the no of products in each row would be varied depending on the total no of products. This answer is good for code before Java 8, but elron's answer is preferable if you are using Java 8. The products should be displayed in row wise. ![]() Sometimes due to HTML constraint we have to iterate over a map of list.įor Example, suppose you have a component which displays a list of products. Suppose you have a Map constructed in your sling model which you want to iterate in HTL, then you can do so using below If you want to learn more about how to start working with Thymeleaf in Spring Boot, check out the this guide.HOW TO ITERATE MAP IN HTL(formerly know as sightly) Thymeleaf offers powerful features that make it ideal for modern HTML5 Java-based web development. Thymeleaf provides th:each attribute that can be used to loop through different Java collection objects like Map, List, Set and array. In this article, we looked at how iteration works in Thymeleaf templates. Here is an example that shows how you can iterate a User array object in Thymeleaf: 1 John Doe 27 Janu Conclusion The th:each attribute also accepts a Java array object as an iterable. Iterating through a Java Set collection is very much similar to a List collection as shown below: 1 John Doe 27 Janu Iterating through Array The following example demonstrates how you can loop through a Java List object by using th:each attribute in Thymeleaf: 1 John Doe 27 Janu Iterating through Set Let us look at an example that uses the th:each attribute to loop through a Java Map object: # ID First Name Last Name Email Age Created 1 100 John Doe 27 Janu Iterating through List last- Check if the current iteration is the last one.first- Check if the current iteration is the first one.even/odd- Check if the current iteration index is even or odd.size- The total amount of elements in the iterated variable.count- The number of elements processed so far.index- The current iteration index, starting with 0.For example, you can pass another local variable next to iter to get the iteration statistics: Īs you can see above, stats is the status variable that contains the following properties: Thymeleaf also provides a way to keep track of the iteration process by using the status variable in th:each statement. Any other object will be treated as if it were a single-valued list containing the object itself.When iterating maps, iter variables will be of type. An object implementing, whose values will be used as they are returned by the iterator, without the need to cache all values in memory.Several objects qualify as an iterable that can be iterated over using the Thymeleaf's th:each attribute: The th:each attribute is not just limited to List or Map. The th:each attribute is a special attribute provided by Thymeleaf template engine to loop through different data collections. User.java public class User implements Serializable Thymeleaf th:each Attribute Java Model Classīefore we jump to actual work - iterating collections in Thymeleaf, let us first create a simple Java model class called User.java that stores the user information as shown below: For more information about Thymeleaf integration with Spring Boot, take a look at the introductory tutorial. In this quick article, you'll learn how to iterate through common Java collections like a Map, List, Set and array in a Thymeleaf and Spring Boot application. It is used for processing XML, HTML, JavaScript, CSS, and other documents. Thymeleaf is a popular server-side template engine for Java-based web and standalone applications. ![]()
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