1. try and catchException explain and example 9.write one simple exception handling code in notepad. 10.Diffrence betwwen Class and Interface 11.Method Overloading VS Method Overriding 12.what is exception handling and how to handle exceptions and errors 13.Lamda functions 14.what is Polymorphism and example 15.what is inheritance 16.How do we achive polymorphisim 17.use of exception handling in realtime scenario 18.How do we achive interface 19.access specifier 20.method overriding and overloading 21.in java which class is final(String class) 22.stream AOI,Lambda function 23.collections 24.diffrence between arraylist and hashset 25.list vs arraylist vs hashset 26.hashset vs set 27.which collection is used to remove duplicates and how? 28.Array Vs ArrayList 29.How to compare two Objects 30.Definition of Class and Object ------------------→>>>>Software Engineering<<<<---------------- 1.About SDLC 2.sdlc life cycle—waterfall model,agile model 3.your project following which model(Agile model) ----------------------→>>>>SPRING<<<<------------------- 1.@Autowired annotation 2.Explain indetail how you connected to your backend 3.types of cascadetypes 4.did you implement oops concepts in your project –yes 5.explain file application.properties 6.what annotations did you use in your project
  2. Explain pom.Xml file 8.Which type of java version has been used in your project 9.what is @Service, @Autowired and why we use 10.Explain all the annotations used in controller. 11.Where did you write the databse connectivity drivers? 12.In pom.xml, what is <stater-jpa> dependence is for? 12.why we need to use spring-boot, where we have alternatives like spring mvc, j2ee? 13.how can we connect angular and backend. 14.what id @RestController? 15.what is spring and sringboot? 16.what is JPARespository? 17.what are the inbuilt methods in JPARepository? 18.what is @service and why we use 19.application properties 20.how you connect the backend data to frontend? 21.why we use /url in backendUrl 22.Spring boot feautres 23.All @Annotation and why we are using it 24.putmapping vs deletemapping 25.postmapping vs getmapping 26.Annotations used in Spring? 27.How does the JPA Work ? 28.what is dependency injection and types 29.what is @PathVariable 30.what is spring-boot-starter-web in pom.xm 31.explain about delete mapping and why we use /id 32.spring boot version. 33.use of @springbootapplication. 34.use of tomcat server. 35.what is the purpose of starter dependency. 36.use of orm. 37.object of class will created before @autowired used or not. If not why? 38.type of database used. 39.what is the purpose of arraylist. 40.how to add data into arraylist. 41.http protocol. 42.what is the purpose of @getMapping and @postMapping. 43.can I post data using @getMapping. If no why? 44.what is an interface? 45.how u got save,delete,findByID? 46.why you use interface in JpaRepository instead of class? 47.why you use postman instead of browser link? 48.which database u had used in ur project 49.what is Entity 50.use of @Requestbody 51.Use of service layer 52.diff between spring and spring framework 53.what is jpa repository and hibernate 54.what is @Repository 55.you have used a new keyword in springboot? 56.Why we use association in springboot.explain 57.why we used component? 58.when object is created,IS before or after the using @Autowired? 59.JAVA version and spring boot version used in project? 60.where JPA is used in your project? 61.what is ORM 62.in pom.xml what are dependances u used and what is their purpose of using? 63.is encapsulation used in your project? 64.Hibernate 65.is it required to use tomcat in your project? 66.what is the difference between the Jpa and Jdbc? 67.@PostMapping 68.if u want to add through @GetMapping is it works or not? 69.what is used save in method? 70.What is the difference between flush() and delete(). 71.Annotations @Repository,@Service,@RestController 72.JsonIgnore 73.Drivers,Connectors for database 74.What is Constructor,Interface 75.uses of this annotations -@Restcontroller @Repository @JpaRepository @Autowired @Service @PostMapping @GetMapping 76.what are stereotype annotation 77.show the output in postman(post,get) 78.for getAll() method run it in sql and display data 79.what are the versions of java and spring boot u used in the project 80.what the dependencies used in project. 81.what is the difference between the Jpa and Jdbc 82.how @PostMapping annotation restrict to get values 83.use of findAll 84.Difference between java 8 & java 11 85.why we use jparepository? 86.difference between spring and springboot 87.what is ServletInitializer and uses 88.if we won’t add @service in what will happen. 89.dependency injection 90.what is constructor injection
  1. what are files created in component
  2. what is css,html,ts 16.why we use validators 17.Perform delete operations in angular 18.ngoninit uses and why we are using 19.observable 20.*ngFor uses 21.What is asynchronous processes? 22.Can deadlock occur in synchronous processes?
  3. RestController Vs @Controller 24.@Entity and @Id Annotations 25.Mappings and difference between the mappings