To find the minimum number of swaps required to make an array sorted, you can use the concept of selection sort. Here’s an example implementation in Java: public class MinimumSwaps…

Java Garbage collection process The Java Garbage Collection process is responsible for automatically reclaiming memory occupied by objects that are no longer in use by the application. The process is…

To find the nth node from the end of a linked list, you can use the two-pointer technique. Example implementation in Java: class ListNode { int val; ListNode next; ListNode(int…

To stop a Java process gracefully, you can send a termination signal to the process. The most common way to do this is by sending the SIGTERM signal, which allows…

To set the JAVA_HOME environment variable for all users on Linux, you can modify the system-wide profile file. Here’s how you can do it: Now, the JAVA_HOME environment variable will…

In Java, record fields are automatically initialized with default values based on their type. Here’s an example that demonstrates the default values assigned to record fields: public record Person(String name,…

Java records and classes serve different purposes and have distinct characteristics. Here are the key differences between Java records and classes: Java Records: Java Classes: In summary, Java records are…

By default, Java records are immutable, meaning their fields cannot be modified once an instance is created. However, starting from Java 17, you can make a record mutable by declaring…

Java introduced a new feature called Records in Java 14, which provides a concise way to declare classes whose main purpose is to hold data. Records automatically generate constructor, accessor…

The var keyword allows for local variable type inference, where the compiler infers the type of a variable based on the assigned value. It reduces the need for explicit type…