#java

code What is the difference between an abstract method and a concrete method in Java?

In Java, an abstract method is a method that is declared, but not defined, in an abstract class or interface. The method definition is left to the... Read more

code What is the difference between the compareTo() and equals() methods in Java?

The compareTo() and equals() methods in Java are used to compare two objects. Although both methods are used to compare objects, there are some... Read more

data_usage What is the difference between a HashSet and a TreeSet in Java?

Both HashSet and TreeSet are two important classes in Java's Collection Framework that are used to store a collection of elements, but there are some... Read more

code What is the purpose of the main method in Java?

The main method is a crucial part of a Java program. It is the entry point of any Java application and serves as the starting point of program... Read more

code What is the difference between the compareTo() and equals() methods in Java?

The compareTo() and equals() methods in Java are used to compare two objects. Although both methods are used to compare objects, there are some... Read more

code What is the difference between static and non-static methods in Java?

In Java, methods can be either static or non-static depending on how they are declared. The main difference between these two types of methods is... Read more

code How does exception handling work in Java?

Exception handling in Java is a way to handle errors and exceptional situations that can arise during the execution of a program. It is a mechanism... Read more

code What is the difference between the equals() and == operators in Java?

In Java, the equals() method and the == operator are both used to compare two objects, but they differ in their behavior and usage.The == operator... Read more

memory What is the difference between a thread and a process in Java?

In Java, both threads and processes are ways to achieve concurrency and parallelism, but they are not the same thing.A process is an independent... Read more

code What is the purpose of the assert keyword in Java?

The assert keyword in Java is used as a debugging aid to check assumptions made by the program. It is typically used to check for conditions that... Read more