The statement java.util.*; imports all of the java.util package members so that you don't have to use a package member's fully qualified name. According to the JavaDocs here the package …

Dec 17, 2019 · Por ejemplo import java.util.Date; Siempre es mejor realizar un import de las clases que necesites. De otra forma en ocasiones podemos encontrarnos con conflictos de nombres …

I would like to get a random value between 1 to 50 in Java. How may I do that with the help of Math.random();? How do I bound the values that Math.random() returns?

Jan 22, 2009 · I have an image that is base64 encoded. How do I decode base64 in Java? Hopefully using only the libraries included with Sun Java 6.

Jan 18, 2022 · java.lang.reflect.InaccessibleObjectException: Unable to make field private final java.util.Comparator java.util.TreeMap.comparator accessible:module [duplicate] Asked 3 …

Apr 24, 2022 · at java.base/java.util.concurrent.FutureTask.get (FutureTask.java:204) The problem in your code does not lie within your stream, but in the timeout passed to the get() …

If you must have a java.util.Date for use with classes not yet updated to work with the java.time types, convert. Call the java.util.Date.from( Instant instant ) method.

Apr 28, 2011 · The java.util.logging.Level documentation does a good job of defining when to use a log level and the target audience of that log level. Most of the confusion with java.util.logging …

No, java.util.List.isEmpty() doesn't check if a list is null. If you are using the Spring framework you can use the CollectionUtils class to check if a list is empty or not.

Feb 19, 2011 · 121 Do you absolutely have to use java.util.Date? I would thoroughly recommend that you use Joda Time or the java.time package from Java 8 instead. In particular, while Date …