UML Exception Handler Notation
What is the notation for an Exception Handler in UML activity diagrams? Is it just the lightning bolt? Or more than that?According to the specification v2.5.1 page 404:An ExceptionHandler is shown by...
View ArticleAnswer by muued for Merge multiple List into single List by maintaining order...
You could doList<Integer> one = Arrays.asList(1, 2, 3);List<Integer> two = Arrays.asList(4, 5, 6);List<Integer> three = Arrays.asList(7, 8, 9);List<List<Integer>> lists =...
View ArticleAnswer by muued for Java algorithm to split time in decreasing portions
Say n is the size of your list, then you can determine your chunking factor a as follows:a = requiredConclusionTime/(2^n - 1).Then list item i gets a * 2^i time.See Geometric Progression at Wikipedia
View ArticleWhy is `Stream.collect` type-safe and `Stream.toArray(IntFunction)` is not?
Consider the following code fragmentString strings[] = {"test"};final List<String> collect = java.util.Arrays.stream(strings).collect(java.util.stream.Collectors.toList());final Double[] array =...
View ArticleAnswer by muued for Should I do `Thread.currentThread().interrupt()` before...
I suggest throwing a ClosedByInterruptException. Although it belongs to the NIO library, it has a better defined API than the old InterruptedIOException, making it easier to handle. For example:try {...
View ArticleAnswer by muued for JavaScript "or"-functionality in PHP
have a look at this answer.You can use the elvis operator like this:$phone = $row['phone'] ?: $row['mobile'];This would be shorter than$phone = $row['phone'] ? $row['phone'] : $row['mobile'];
View ArticleAnswer by muued for Limit groupBy in Java 8
This would give you the desired result, but it still categorizes all the elements of the stream:final int N = 10;final HashMap<String, List<StudentClass>> groupByTeachers =...
View ArticleAnswer by muued for Avoid Log4j/Slf4j debug enabled checks
By using Log4j2 and Java 8, you can easily make use of lambdas as described here, so in your case using debug(Message, Supplier) e.g. log.debug("Here is the data: {}", () ->...
View ArticleAnswer by muued for Joining a List inside a map
Google Guava has a nice helper method for this:com.google.common.collect.Maps.transformValues(map, x -> x.stream().collect(joining("|")));using pure java, this would...
View ArticleAnswer by muued for How to initialize a map using a lambda?
Google Guava's Maps class provides some nice utility methods for this.Additionally, there is the ImmutableMap class and its static methods.Have a look at: ImmutableMap.of(key1, value1, key2, value2,...
View ArticleAnswer by muued for Java Generic Types Mismatch Error
The system has to assume that T and U are two different types, since you gave them two different names. But you can just remove the additional generic type from your second ctor like that:public class...
View ArticleAnswer by muued for Collections.unmodifiableList with custom objects, prevent...
Make Bar implement an Immutable Interface providing the getters only, eg ImmutableBar. Pass the instances of Bar as ImmutableBars to the GUI.
View ArticleAnswer by muued for Need help in figuring out what is wrong with basic...
your Buffer::getInstance method has the null check the wrong way, change it topublic static synchronized Buffer getInstance(){ if(instance == null){ instance = new Buffer(); } return instance;}
View ArticleAnswer by muued for How does a hashSet admit elements
Use this answer:How does a Java HashMap handle different objects with the same hash code?and the information, that HashSet<E> is just a HashMap<E, Object>.
View ArticleAnswer by muued for how to get the height of avl tree in java
The default approach is to use recursion to determine the height.private int height(AVLNode t) { return t == null ? -1 : 1 + Math.max(height(t.left), height(t.right));}
View ArticleAnswer by muued for Java Generics, Type Inference, Inheritance?
You have to remind yourself that the classes are compiled one by one. Java generics are not templates as in other languages. There will only be one compiled class and not one class per type it is used...
View ArticleAnswer by muued for Java 8 list manipulation
Duplicates in you stream may lead to duplicates in the categories list, when they are not contained in the categories list beforehand, since the filter method is applied for all items, before one of...
View ArticleAnswer by muued for Understanding typesafety anomaly with Java generics
I guess you are aware, that generic types are gone at run time. Now, to see what's happening behind the scenes, let's look at this piece of codepublic static Class<?> getClass(final Object...
View ArticleAnswer by muued for How to get final package name?
There is no 1:1 relation between Statements and Expressions. E.g. ExpressionStmt contains just one Expression, but WhileStmt contains a condition Expression and a body comprising a further Statement....
View ArticleAnswer by muued for Java Decode Run Length Assignment
I suggest you try to split your decode methods into two main logical parts:One for the case that you are actually performing a RLE and the other for the case where you have a sequence of non-repeated...
View Article
/pic9814888.png)
/fit-in/580x348/filters:format(webp)/english-betterindia/media/media_files/2026/09/17/balaghat-4-2026-09-17-19-01-31.png)
