Answer :

To create an Apex class that uses Batch Apex to update lead records, you need to implement the Database.Batchable interface and specify the SObject type (Lead in this case). The interface requires three methods: start, execute, and finish.


Here's an example of an Apex class for updating Lead records:

```
public class LeadUpdateBatch implements Database.Batchable {

public Database.QueryLocator start(Database.BatchableContext bc) {
// Query to fetch the leads you want to update
return Database.getQueryLocator('SELECT Id, FieldToUpdate__c FROM Lead WHERE SomeCondition__c = true');
}

public void execute(Database.BatchableContext bc, List leadsToUpdate) {
for (Lead lead : leadsToUpdate) {
// Update the desired field(s)
lead.FieldToUpdate__c = 'New Value';
}

// Perform the update operation
update leadsToUpdate;
}

public void finish(Database.BatchableContext bc) {
// Optional actions to perform after the batch execution, such as sending notifications
}
}
```

To run the batch class, execute the following in the Anonymous Apex window:

```
LeadUpdateBatch leadBatch = new LeadUpdateBatch();
ID batchProcessId = Database.executeBatch(leadBatch, 200); // Set the batch size as desired
```

This Apex class uses Batch Apex to update Lead records by implementing the Database. Batchable interface, defining the query in the start method, updating the fields in the execute method, and performing any final actions in the finish method.

Learn more about Apex class at https://brainly.com/question/30409376

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Rewritten by : Barada