Mycoola

public class TaskUtility
{
    public static String getTaskPriority(String leadCountry)
    {
        if(String.isBlank(leadCountry)||leadCountry.length()>2)
        {
            return null;
            
        }
        String taskPriority;

Mycoola

@isTest
public class TaskUtilityTest
{
    @isTest static void testGetTaskPriority()
    {
        String priority=TaskUtility.getTaskPriority('AU');
        System.assertEquals('Normal', priority);
    }
    @isTest static void testTaskHighPriority()
    {

Mycoola

@isTest
public class TemperatureConvertorTest {

    @isTest static void testWarmTemp()
    {
        Decimal celsius=TemperatureConvertor.FahrenheitToCelsius(70);
        System.assertEquals(21.11, celsius);
    }
    
    @isTest static void testFreezingPoint()

Mycoola

public class TemperatureConvertor
{
    public static Decimal FahrenheitToCelsius(Decimal fh)
    {
        Decimal cs=(fh-32)*5/9;
        System.debug('temperature in Celsius='+cs.setScale(2));
        return cs.setScale(2);
    }
    
    

Mycoola

global class FutureMethodExample
{
    @future(callout=true)
    public static void getStockQuotes(String acctName)
    {   
         // Perform a callout to an external service
    }

}

Mycoola

global class FutureClass
{
    @future
    public static void myFutureMethod()
    {   
         // Perform some operations
    }
}

Mycoola

public without sharing class AccountTriggerHelper {
    public AccountTriggerHelper() {
        System.debug('Inside AccountTriggerHelper Constructor');
    }
    public void doTask1() {
        System.debug('Inside Task 1');
    }
    public void doTask2() {
        System.debug('Inside Task 2');
    }

Mycoola

public without sharing class AccountTriggerHandler implements TriggerHandler {
    private boolean triggerIsExecuting;
    private integer triggerSize;
    public AccountTriggerHelper helper;
    public AccountTriggerHandler(boolean triggerIsExecuting, integer triggerSize) {
        this.triggerIsExecuting = triggerIsExecuting;
        this.triggerSize = triggerSize;
        this.helper = new AccountTriggerHelper();
    }
    public void beforeInsert(List<Account> newAccounts) {

Mycoola

public interface TriggerHandler {
    void beforeInsert(List<SObject> newRecords);
    void beforeUpdate(List<SObject> oldRecords, List<SObject> newRecords, Map<ID, SObject> oldRecordMap, Map<ID, SObject> newRecordMap);
    void beforeDelete(List<SObject> oldRecords, Map<ID, SObject> oldRecordMap);
    void afterInsert(List<SObject> newRecords, Map<ID, SObject> newRecordMap);
    void afterUpdate(List<SObject> oldRecords, List<SObject> newRecords, Map<ID, SObject> oldRecordMap, Map<ID, SObject> newRecordMap);
    void afterDelete(List<SObject> oldRecords, Map<ID, SObject> oldRecordMap);
    void afterUndelete(List<SObject> newRecords, Map<ID, SObject> newRecordMap);
}

Mycoola

trigger AccountTrigger on Account (before insert, before update, before delete, after insert, after update, after delete, after undelete) {
    if (Org_Specific_Setting__mdt.getInstance('Run_All_Triggers')?.Value__c == true) {
        TriggerHandler handler = new AccountTriggerHandler(Trigger.isExecuting, Trigger.size);
        switch on Trigger.operationType {
            when BEFORE_INSERT {
                // handler.beforeInsert(Trigger.new);
            }
            when BEFORE_UPDATE {
                // handler.beforeUpdate(Trigger.old, Trigger.new, Trigger.oldMap, Trigger.newMap);
            }