Java Coding Standards

Coding Standards for Components: It is recommended to write components name by its purpose. This approach improves the readability and maintainability of code.

Coding Standards for Classes: Usually class name should be noun starting with uppercase letter. If it contains multiple word than every inner word should start with uppercase.

Eg: String, StringBuffer, Dog

Coding Standards for Interface: Usually interface name should be adjective starting with uppercase letter. If it contains multiple word than every inner word should start with uppercase.

Eg: Runnable, Serializable, Comparable

Coding Standards for Methods: Usually method name should either be verb or verb noun combination starting with lower letter. If it contains multiple word than every inner word should start with uppercase.

Eg: print(), sleep(), setSalary()

Coding Standards for Variables: Usually variable name should be noun starting with lowercase letter. If it contains multiple word than every inner word should start with uppercase.

Eg: name, age. mobileNumber

Coding Standards for Constants: Usually constant name should be noun. It should contain only uppercase If it contains multiple word than words are separated with ( _ ) underscore symbol. Usually we declare constants with public static and final modifiers.

Java Bean Coding Standards: A Java Bean is a simple java class with private properties and public getter and setter methods

Getter Methods:

1. It should be public method
2. Method name should be prefixed with “get”
3. It should not take any argument

Setter Methods:

1. It should be public method
2. Return Type should be void
3. Method name should be prefixed with “set”
4. It should take some argument

public class StudentBean{

private String name;

public void setName(String name){

this.name=name;

}

public String getName(){

return name;

}

}

Note: For boolean properties getter method can be prefixed with “get” or “is”

Coding convention for Listners:

• To register a Listner method name should prefixed with add

Eg: public void addMyAccountListner( MyActionListner);

• To unregister a Listner method name should prefixed with remove

Eg: public void removeMyAccountListner( MyActionListner);