@Getter and @Setter

Never write public int getFoo() {return foo;} again.

Overview

You can annotate any field with @Getter and/or @Setter, to let lombok generate the default getter/setter automatically.
A default getter simply returns the field, and is named getFoo if the field is called foo (or isFoo if the field's type is boolean). A default setter is named setFoo if the field is called foo, returns void, and takes 1 parameter of the same type as the field. It simply sets the field to this value.

The generated getter/setter method will be public unless you explicitly specify an AccessLevel, as shown in the example below. Legal access levels are PUBLIC, PROTECTED, PACKAGE, and PRIVATE.

You can also put a @Getter and/or @Setter annotation on a class. In that case, it's as if you annotate all the non-static fields in that class with the annotation.

You can always manually disable getter/setter generation for any field by using the special AccessLevel.NONE access level. This lets you override the behaviour of a @Getter, @Setter or @Data annotation on a class.

With Lombok

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Vanilla Java

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Small print

For generating the method names, the first character of the field, if it is a lowercase character, is title-cased, otherwise, it is left unmodified. Then, get/set/is is prefixed.

No method is generated if any method already exists with the same name and same parameter count. For example, getFoo() will not be generated if there's already a method getFoo(String... x) even though it is technically possible to make the method. This caveat exists to prevent confusion. If the generation of a method is skipped for this reason, a warning is emitted instead. Varargs count as 0 to N parameters.

For boolean fields that start with is immediately followed by a title-case letter, nothing is prefixed to generate the getter name.

Any variation on boolean will not result in using the is prefix instead of the get prefix; for example, returning java.lang.Boolean results in a get prefix, not an is prefix.

Any annotations named @NonNull (case insensitive) on the field are interpreted as: This field must not ever hold null. Therefore, these annotations result in an explicit null check in the generated setter. Also, these annotations (as well as any annotation named @Nullable or @CheckForNull) are copied to setter parameter and getter method.

You can annotate a class with a @Getter or @Setter annotation. Doing so is equivalent to annotating all non-static fields in that class with that annotation. @Getter/@Setter annotations on fields take precedence over the ones on classes.

Using the AccessLevel.NONE access level simply generates nothing. It's useful only in combination with @Data or a class-wide @Getter or @Setter.

@Getter can also be used on enums. @Setter can't, not for a technical reason, but for a pragmatic one: Setters on enums are an extremely bad idea.