CrudRepo

1.save(S entity);

entities);

3.findById(ID id);

4.existsById(ID id); 5.findAll();

6.findAllById(Iterable<ID> ids);

7.count();

8.deleteById(ID id); 9.delete(Entity)

10.deleteAll(Iterable<? extends T> entities);

11.deleteAll()

JpaRepository

->JpaRepository interface given Spring Data JPA Module. ->The Use of JpaRepository is To Perfrom CRUD operations and sorting and paginations operation with Any relational Data base.

IMPLEMENTED METHODS

1.findAll();

2.findAll(Sort sort); 4.saveAll(Iterable<S> entities);

3.findAllById(Iterable<ID> ids);

5.flush();

6.saveAndFlush(S entity);

7.deleteInBatch(Iterable<D entities):

8.deleteAllInBatch():

9.getOne(ID id); 10.findAll(Example<S> example);

11.findAll(Example<S> example, Sort sorty,

Post URL : https://reqres.in/api/login

PUT URL

STS zip file

Just download extract n run

Don't delete any folder that is created once extraction done open application

Data Structures
A data structure is a model where data is organized, managed and stored in a format that enables efficient access and modification of data.

Different forms of data may require different types of data structures.

A program built using improper data structures will be therefore inefficient or unnecessarily complex. It is necessary to have a good knowledge of data structures and understand where to use the best one.

Inbuilt Data Structures

Inbuilt data structures are provided by most programming languages. They may be used to derive other data structures.