Pagination and sorting with Pageable in Spring Boot - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to import the Pageable interface for pagination.

Spring Boot

import org.springframework.data.domain.[1];

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APage

BPageable

CSort

DPageRequest

Attempts:

3 left

💡 Hint

Common Mistakes

Importing Page instead of Pageable

Importing Sort which is for sorting, not pagination

Importing PageRequest which is a class, not the interface

The Pageable interface is imported from org.springframework.data.domain to enable pagination.

2fill in blank

medium

Complete the method signature to accept pagination and sorting parameters using Pageable.

Spring Boot

public Page<User> getUsers([1] pageable) {

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APageRequest

BSort

CPageable

DPage

Attempts:

3 left

💡 Hint

Common Mistakes

Using PageRequest as parameter type instead of Pageable

Using Sort which only handles sorting

Using Page which is a return type, not parameter

The method parameter should be of type Pageable to receive pagination and sorting info.

3fill in blank

hard

Fix the error in the repository method to support pagination.

Spring Boot

Page<User> findAll([1] pageable);

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APageable

BSort

CList

DPageRequest

Attempts:

3 left

💡 Hint

Common Mistakes

Using PageRequest which is a class, not interface

Using Sort which is only for sorting

Using List which does not support pagination

The repository method must accept a Pageable parameter to enable pagination.

4fill in blank

hard

Fill both blanks to create a PageRequest with page number 0 and size 10 sorted by 'name' ascending.

Spring Boot

PageRequest [1] = PageRequest.[2](0, 10, Sort.by("name").ascending());

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ApageRequest

Bof

Ccreate

Dbuild

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'create' or 'build' instead of 'of' method

Using variable names that don't follow camelCase

The variable is named pageRequest and the static factory method to create it is of.

5fill in blank

hard

Fill all three blanks to return a paged and sorted list of users by calling repository with pageable.

Spring Boot

Page<User> users = userRepository.[1]([2]); return users.[3]();

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AfindAll

BpageRequest

CgetContent

DfindById

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'findById' which returns a single entity

Calling 'getContent' on repository instead of Page object

Passing wrong variable instead of pageable

The repository method to get paged data is findAll, passing the pageRequest variable, then calling getContent() to get the list of users.