This resource offers a total of 160 Java Conditional Statement problems for practice. It includes 32 main exercises, each accompanied by solutions, detailed explanations, and four related problems. [AnEditoris available at the bottom of the page to write and execute the scripts.] 1. Check Positi...
is one of the most important features introduced in Java 5. If you have been working onJava Collectionsand with version 5 or higher, I am sure that you have used it.Generics in Javawith collection classes is very easy but provides many more features than just creating the type of collectio...
This resource offers a total of 95 Java Sorting problems for practice. It includes 19 main exercises, each accompanied by solutions, detailed explanations, and four related problems. [AnEditoris available at the bottom of the page to write and execute the scripts.] 1.Write a Java program to ...
learning an IDE for the first time or a seasoned programmer looking to see if the grass is greener on the other side of the fence, you've come to the right place. We've ranked the three most popular Java IDEs of 2025, and outlined the benefits, drawbacks and use cases for each. In...
For example, the completion of a thread’s execution might depend on other threads having completed their execution. The usual well-known example is that of the producer/consumer, because the producer should wait for the consumer if the consumer’s queue is full, and the consumer should wait ...
Therefore, if anyone asks you the interview question, why a lambda expression can access only final and effectively final local variables, you will know the answer. Because the Java Language Specification says so. Everything else is speculation. You an find the code for this article along with...
Java内存模型(Java Memory Model)是JAVA面试中一个常见知识点,深入理解JMM的面试者往往能够让考官眼前一亮,进而留下深刻的印象。本文转载翻译自JAVA并发大牛布莱恩(Brian Goetz) 的博客[1]《Java theory and practice: Fixing the Java Memory Model, Part 2》,以帮助读者对Java内存模型(JMM)有深入的理解和思考。
try-catch blocks can be nested similar to if-else statements. We can have only one finally block with a try-catch statement. Exception Hierarchy As stated earlier, when any exception is raised anexception objectis getting created. Java Exceptions are hierarchical andinheritanceis used to cate...
if(t == null) throw new NullPointerException(); This throws the exception, which allows you—in the current context—to abdicate responsibility for thinking about the issue further. It’s just magically handled somewhere else. 2.Catching an exception ...
This code looks pretty reasonable. However, many computers (for example, the Raspberry Pi) don't actually ship with a sound card. So what is the result ofgetSoundcard()? A common (bad) practice is to return the null reference to indicate the absence of a sound card. Unfortunately, this...