Found 7442 Articles for Java

5 different ways to create objects in Java

Nikitha N
Updated on 06-Mar-2020 06:12:45

5K+ Views

Consider a class Tester which has implemented Cloneable interface. Now you can initialize an object using following five ways:1. Using new keyword.Tester tester1 = new Tester();2. Using Class.forName() methodTester tester2 = (Tester)Class.forName("Tester").newInstance();3. Using clone method.Tester tester3 = tester1.clone();4. Using Constructor.forName() methodTester tester4 = Tester.class.getConstructor().newInstance();5. Using DeserializationObjectInputStream objectInputStream = new ObjectInputStream(inputStream ); Tester tester5 = (MyObject) objectInputStream.readObject(); Using new keyword is the most preferred one.

3 ways to initialize an object in Java

Alshifa Hasnain
Updated on 17-Mar-2025 11:59:13

9K+ Views

In Java, objects may be initialized in various ways for different purposes. When a class is implementing the Cloneable interface, it opens up one more way of creating object instances. What is Cloneable Interface? Cloneable interface in Java states that a class can clone its objects. It enables the class to make a copy of itself using the clone() method. If the class is not Cloneable, the clone() method called on its object would throw an error. Different Approaches Consider a class Tester that has implemented a Cloneable interface. Now you can initialize an object using the following three ways ... Read More

3 ways to initialize an object in Java

Alshifa Hasnain
Updated on 17-Mar-2025 11:59:13

9K+ Views

In Java, objects may be initialized in various ways for different purposes. When a class is implementing the Cloneable interface, it opens up one more way of creating object instances. What is Cloneable Interface? Cloneable interface in Java states that a class can clone its objects. It enables the class to make a copy of itself using the clone() method. If the class is not Cloneable, the clone() method called on its object would throw an error. Different Approaches Consider a class Tester that has implemented a Cloneable interface. Now you can initialize an object using the following three ways ... Read More

New keyword in Java

Nikitha N
Updated on 06-Mar-2020 06:08:28

700 Views

Yes, it is similar to a new keyword of C++. a new keyword is used to initialize/create an object. See the following example −Employee employee = new Employee();Here new keyword is used to create an object of class Employee.new Employee() invokes the constructor of the class Employee.new keyword can also be used without assigning the object to a reference variable. See the example −String name = new Employee().getName();Here we are creating an object using new keyword and then invoked a method getName() on the object and passed the result to a variable.

New keyword in Java

Nikitha N
Updated on 06-Mar-2020 06:08:28

700 Views

Yes, it is similar to a new keyword of C++. a new keyword is used to initialize/create an object. See the following example −Employee employee = new Employee();Here new keyword is used to create an object of class Employee.new Employee() invokes the constructor of the class Employee.new keyword can also be used without assigning the object to a reference variable. See the example −String name = new Employee().getName();Here we are creating an object using new keyword and then invoked a method getName() on the object and passed the result to a variable.

CamelCase in Java naming conventions

Ankitha Reddy
Updated on 30-Jul-2019 22:30:22

883 Views

Java follows camel casing for objects, class, variables etc. If a name is having multiple words, the first letter is small then consecutive words are joint with the first letter as a capital case. Consider the following example − Taxation Department Class - TaxationDepartment Object - taxationDepartment Method - getTaxationDepartmentDetails Variable - taxationDepartment

CamelCase in Java naming conventions

Ankitha Reddy
Updated on 30-Jul-2019 22:30:22

883 Views

Java follows camel casing for objects, class, variables etc. If a name is having multiple words, the first letter is small then consecutive words are joint with the first letter as a capital case. Consider the following example − Taxation Department Class - TaxationDepartment Object - taxationDepartment Method - getTaxationDepartmentDetails Variable - taxationDepartment

Advantages of naming conventions in Java

Syed Javed
Updated on 06-Mar-2020 05:38:32

551 Views

Following the the best practices while declaring a variable.  These best practices maintains code readability, understandability as project code size increases.Variables names should be short or long enough as per the scope. For example, loop counter variable, i is fine whereas employee as loop variable.Specific words should not be used like equals, compare, data.Use meaningful names which can explain the purpose of the variable. For example cnt Vs counter.Don't use _ to declare a variable name, Use camel casing. For example, employeeName is better than employee_name.Each organization has its own syntax specific standards. Follow those rules to maintain consistency and ... Read More

Advantages of naming conventions in Java

Syed Javed
Updated on 06-Mar-2020 05:38:32

551 Views

Following the the best practices while declaring a variable.  These best practices maintains code readability, understandability as project code size increases.Variables names should be short or long enough as per the scope. For example, loop counter variable, i is fine whereas employee as loop variable.Specific words should not be used like equals, compare, data.Use meaningful names which can explain the purpose of the variable. For example cnt Vs counter.Don't use _ to declare a variable name, Use camel casing. For example, employeeName is better than employee_name.Each organization has its own syntax specific standards. Follow those rules to maintain consistency and ... Read More

Java Naming Conventions

Ankitha Reddy
Updated on 22-Aug-2024 12:12:47

3K+ Views

All Java components require names. Names used for classes, variables and methods are called identifiers. The naming conventions for different Java components are as follows: Package Naming Convention Class Naming Convention Interfaces Naming Convention Method Naming Convention Constants Naming Convention Variables Naming Convention Quick Summary Package Naming Convention Naming conventions for Java packages typically involve using lowercase letters. It's common to use ... Read More

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