What is the difference between the service cloud and vs sales cloud of salesforce?

In the context of Salesforce, here are the differences given between service cloud vs sales cloud:-

Sales Cloud

Salesforce’s sales cloud is a customer relationship management platform that is designed to help businesses managements and their sales process. The key features of this cloud are the following:-

Lead management

Opportunity tracking

Contact and account management

Sales forecasting

Sales performance Analytics

Service Cloud

Salesforce’s service cloud is a customer service and support platform that tries to enable the business to provide exceptional customer experience and also resolve customer issues efficiently. The key features of this are the following:-

Case management

Knowledge base

Omni channel support

Services level agreement

Customer self service portal

Here is the example given for salesforce sale cloud

  // Apex code for Salesforce’s Sales Cloud (Example)

Public class SalesProcess {

    Public static void createLead(String firstName, String lastName, String email) {

        Lead newLead = new Lead();

        newLead.FirstName = firstName;

        newLead.LastName = lastName;

        newLead.Email = email;

        newLead.Status = ‘Open – Not Contacted’;

        insert newLead;

    }

    Public static void updateOpportunityStage(Id opportunityId, String newStage) {

        Opportunity opp = [SELECT Id, StageName FROM Opportunity WHERE Id = pportunityId];

        Opp.StageName = newStage;

        Update opp;

    }

    Public static void generateSalesReport(Date startDate, Date endDate) {

        // Code to generate and email sales report based on specified date range

        // This feature can be part of Sales Cloud analytics and reporting capabilities

    }

}

Here is the example given for salesforce service cloud

// Apex code for Salesforce’s Service Cloud (Example)

Public class CaseManagement {

    Public static void createCase(String subject, String description, String contactId) {

        Case newCase = new Case();

        newCase.Subject = subject;

        newCase.Description = description;

        newCase.ContactId = contactId;

        newCase.Status = ‘New’;

        insert newCase;

    }

    Public static void escalateCase(Id caseId, String assigneeId) {

        Case escalatedCase = [SELECT Id, Status FROM Case WHERE Id = :caseId];

        escalatedCase.OwnerId = assigneeId;

        escalatedCase.Status = ‘Escalated’;

        update escalatedCase;

    }

    Public static void createKnowledgeArticle(String title, String articleContent) {

        Knowledge__kav newArticle = new Knowledge__kav();

        newArticle.Title = title;

        newArticle.Article_Content__c = articleContent;

        newArticle.Language = ‘English’;

        newArticle.KnowledgeArticleId = [SELECT Id FROM KnowledgeArticleVersion WHERE IsLatestVersion = true].Id;

        insert newArticle;

    }

}