Eclipse provides facility of automatically generates comment in java files. You can add your own comment also. Suppose if you want to add your comment on setter getter method following steps are required.
Generate delegation methods IntelliJ IDEA can generate methods that delegate behavior to the fields or methods of your class. This approach makes it possible to give access to the data of a field or method without directly exposing this field or method. To generate a delegation method for a class:. On the Code menu, click Generate.
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In the Generate popup, click Delegate Methods. Select the target field or method, and click OK. Select the desired methods to be delegated and click OK. The following code fragment shows the result of delegating the get(i) method of the Calendar class inside another class.
Public int hashCode The previous method returns the integer hash code value for the object on which this method is invoked. It is generally necessary to override the hashCode method if you override equals because the contract for hashCode is that it must produce the same result for objects that are equal. For more information, see the. To generate the equals and hashCode methods for a class:. On the Code menu, click Generate. In the Generate popup, click equals and hashCode. Select check boxes if you want to accept subclasses and use getters during code generation.
You can also select a from the Template drop-down list to generate the code. Select the fields that should be used to determine equality, and click Next. Select the fields to use for calculating the hash code value. You can choose only from fields that were selected on the previous step (for determining equality). Select the fields that contain non-null values.
This optional step helps the generated code avoid checks for null and thus improves performance. Click Finish. If the overrides for equals and hashCode methods already exist in the class, you will be prompted whether you want to delete them before generating new ones. The following code fragment shows the result of overriding the equals and hashCode methods. Generate getters and setters IntelliJ IDEA can generate accessor and mutator methods ( getters and setters) for the fields in your classes. Generated methods have only one argument, as required by the JavaBeans API.
The getter and setter method names are generated by IntelliJ IDEA according to your. To generate getters and setters for a class:. On the Code menu, click Generate. In the Generate popup, click one of the following:. Getter to generate accessor methods for getting the current values of class fields.
Setter to generate mutator methods for setting the values of class fields. Getter and Setter to generate both accessor and mutator methods. Select the fields to generate getters or setters for and click OK. You can by clicking and accessing the dialog. If a field is not in the list, then the corresponding getter and setter methods are already defined for it. The following code fragment shows the result of generating the getter and setter methods for a class with one field var. Generate toString IntelliJ IDEA can generate an override for the standard toString method defined in Java.lang.Object.
The generated method returns the name of the class and a list of class field names with current values of fields. To override the toString method for a class:.
On the Code menu, click Generate. In the Generate popup, click toString. Configure the following:. Select the fields to be used for generating the toString method.
By default, all the available fields are selected. Click Select None to add the toString method that returns only the class name. Select the desired way for generating the toString method from the Templates drop-down list. Select the Insert @Override check box if necessary. For more information, see. Click the Settings button to open the toString Generation Settings dialog, where you can tune the behavior.
For more information, see. If the toString method is already defined in the class, by default you will be prompted whether you would like to delete this method before proceeding.
You can use the When method already exists group of options in the to change the behavior to either automatically replace existing method or generate a duplicating method. The following code fragment shows the result of generating the toString method for a class with several fields defined. Variable Description $javaversion The current version of the Java Runtime Environment (JRE). $class The current class.
$helper Provides access to various code generation helper methods. $settings Provides the ability to format names according to the current code style. $fields List of fields in the current class. $instanceBaseName Predefined name of the object on which the equals method is called. $baseParamName Predefined name of the equals method parameter. $superParamName The name of the parameter in the equals method of the superclass if applicable.
$checkParameterWithInstanceof Option passed from the wizard. $superHasEquals Whether the superclass has equals declared.