Project Lombok - Getter, Setter and Constructor Example

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Executecommandinterminal:java-jarlombok.jar Thiscommandwillopenwindowasshowninthepicturebelow,installandquittheinstallerandrestarteclipse. WithoutProjectLombok Let'sfirstlookatasampleofcodewhichhasaboilerplatecode.Let'screateaUserclasswithgettermethods,settermethods,andconstructors: packagenet.javaguides.lombok; /** * *@authorRameshFadatare * */ publicclassUser{ privatelongid; privateStringfirstName; privateStringlastName; privateintage; privateStringgender; publicUser(){} publicUser(longid,StringfirstName,StringlastName,intage,Stringgender){ super(); this.id=id; this.firstName=firstName; this.lastName=lastName; this.age=age; this.gender=gender; } publiclonggetId(){ returnid; } publicvoidsetId(longid){ this.id=id; } publicStringgetFirstName(){ returnfirstName; } publicvoidsetFirstName(StringfirstName){ this.firstName=firstName; } publicStringgetLastName(){ returnlastName; } publicvoidsetLastName(StringlastName){ this.lastName=lastName; } publicintgetAge(){ returnage; } publicvoidsetAge(intage){ this.age=age; } publicStringgetGender(){ returngender; } publicvoidsetGender(Stringgender){ this.gender=gender; } } WithProjectLombok WithProjectLombok,wecanremovegettermethods,settermethods,defaultconstructorandparameterizedconstructorinUserclassbyaddingby@Getter,@Setter,@NoArgsConstructor,and@AllArgsConstructor: packagenet.javaguides.lombok.constructor; importlombok.AllArgsConstructor; importlombok.Getter; importlombok.NoArgsConstructor; importlombok.Setter; importlombok.ToString; @Getter @Setter @AllArgsConstructor @NoArgsConstructor @ToString publicclassUserLombokModel{ privatelongid; privateStringfirstName; privateStringlastName; privateintage; privateStringgender; } Testing AsweinstalledLombokpluginineclipsesowecantestProjectLombokannotations.Let'screateamain()methodandtestLombokannotations. packagenet.javaguides.lombok.constructor; publicclassLombokTest{ publicstaticvoidmain(String[]args){ //testconstructor UserLombokModellombokModel=newUserLombokModel(100,"Ramesh","Fadatare",28,"Male"); System.out.println(lombokModel.toString()); UserLombokModellombokMdl=newUserLombokModel(); //testgetterandsettermethods lombokMdl.setId(100L); lombokMdl.setFirstName("Ramesh"); lombokMdl.setLastName("Fadatare"); lombokMdl.setAge(28); lombokMdl.setGender("Male"); System.out.println(lombokMdl.getId()); System.out.println(lombokMdl.getFirstName()); System.out.println(lombokMdl.getLastName()); System.out.println(lombokMdl.getGender()); System.out.println(lombokMdl.getAge()); } } Notethatwehavetestedgettermethods,settermethods,defaultconstructorandparameterizedconstructorintheaboveexample. Output Wecandeclaregetterand settermethodsononlyforsomepropertiesbyusing@Getter,@Setterannotationforthoseproperties.Forexample,Ifweonlyneedgetter,settermethodforpropertyfirstName,lastNameinUserclass,wecandeclareasbelow: importlombok.AllArgsConstructor; importlombok.Getter; importlombok.NoArgsConstructor; importlombok.Setter; importlombok.ToString; @AllArgsConstructor @NoArgsConstructor @ToString publicclassUserLombokModel{ privatelongid; @Getter @Setter privateStringfirstName; @Getter @Setter privateStringlastName; privateintage; privateStringgender; } Reference https://projectlombok.org/features/all GitHubRepository YoucanviewthesourcecodeofthisarticleonmyGitHubrepositoryat https://github.com/RameshMF/project-lombok-tutorial RelatedProjectLombokArticles 1. ProjectLombok-@NonNullAnnotationExample 2. ProjectLombok-Getter,SetterandConstructorExample  3. ProjectLombok-toString(),equals()andhashCode()MethodExample 4. ProjectLombok-@DataAnnotationExample 5. ProjectLombok-BuilderPatternusing@BuilderAnnotation 6. ProjectLombok-Logging@Slf4jAnnotationExample 7. ProjectLombok-AutomaticResourceManagementusing@Cleanup 8. ProjectLombok-@SynchronizedAnnotationExample <