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Finding the Available Drive Types in the System

Language: Java, Expertise: Intermediate - Knowing the available drive types in the system is essential for certain activities in Java. See how to retrieve this vital information.

Boost the Switch Statement in JDK 12

Language: Java, Expertise: Intermediate - Learn how the "switch" statement can be used as either a statement or an expression in JDK12.

Creating a Secure Socket

Language: Java, Expertise: Intermediate - Learn how to secure your socket with encryption so that it is not an easy target for an attacker.

Eclipse MAT - Incoming References, Outgoing References

Eclipse Memory Analyzer (MAT) is a powerful tool for heap dump analysis. Ram Lakshmanan shows you the differences between incoming references and outgoing references.

Using Error: Class Names and YourClassName

Language: Java, Expertise: Beginner - Using error: Class names or 'YourClassName' is only accepted if annotation processing is explicitly requested.

Creating a Specific Date in Java

Language: Java, Expertise: Beginner - Learn how to create a calendar instance and set a specific date.

Formatting Output in Java

Language: Java, Expertise: Intermediate - Learn how to employ proper formatting for your Java output.

Using a Java File with an Empty Main Method

Language: Java, Expertise: Intermediate - Java programs cannot be executed without a standard main method. Learn an work around to cheat the requirements.

Reading All Lines of a File from Classpath in Java 8

Language: Java, Expertise: Intermediate - Learn how to read all lines of a file from classpath in Java 8 and display them on a screen.

Using the Serialver Tool

Language: Java, Expertise: Intermediate - See how Java provides a mechanism to know the serialization properties of a given class.

Programmatically Querying the Number of CPU Cores in Java

Language: Java, Expertise: Intermediate - Learn how to use Java to find the number of CPU cores.

Finding All Digits in a Given String

Language: Java, Expertise: Intermediate - See how this regex will help you retrieve all the digits that are present in a string.

Convert an Operand to a String

Language: Java, Expertise: Intermediate - Learn how to convert various types of operands to strings.

Moving a File Using Java

Language: Java, Expertise: Intermediate - See how to use Java APIs to move a file.

Building Javadocs from the Command Line

Language: Java, Expertise: Beginner - Some IDEs provide support for generating HTML from Javadocs automatically, but see how this can also be achieved using the command line.

Using Optional in Java

Language: Java, Expertise: Intermediate - Learn how to assign null value to an object of type Optional.

Using NaN in Java

Language: Java, Expertise: Intermediate - Learn more about using NaN in Java, such as how it has multiple faces and is returned under different circumstances.

Using the String Concatenation Operator in Java

Language: Java, Expertise: Intermediate - See how the plus symbol can be used as three distinct operators in Java.

Running an Executable JAR File

Language: Java, Expertise: Beginner - See why executable JAR files are the easiest way to assemble Java code.

Schedule a Task to Start After a Defined Interval

Language: Java, Expertise: Intermediate - Learn how to schedule activating a task at regular intervals.

Find an IP Address by Name

Language: Java, Expertise: Intermediate - See how Java provides an easy mechanism to retrieve the IP address of a server that you know.

Dereferencing in Java

Language: Java, Expertise: Beginner - Dereferencing pursues the memory address placed in a reference, to the place in memory where the actual object exists. See how dereferencing works in Java.

Relation Between Static Keyword and Memory Allocation

Language: Java, Expertise: Intermediate - Learn more about how to use the static keyword regarding memory allocation.

Converting a Date to a Certain String Format

Language: Java, Expertise: Beginner - Convert a date object into certain format string objects using the supplied pattern string.

Testing if an Object can be Cast Using Instanceof

Language: Java, Expertise: Beginner - Learn how to test if an object is of a certain type, or a subclass of that type.

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