Wrapper Class

A Wrapper class is a class whose instances are collection of other objects. It is used to display different objects on a Visual Force page in same table.

Wrapper Class Example 

Wrapper class for displaying Checkbox and String Data types in a single table.

Create a Class with the name “WrapperIntStringDisplayClass” :

public with sharing class WrapperIntStringDisplayClass {

	// Creating lists for the object Testing__c and DataLoadTest__c.
	List<Testing__c> lsttest = new List<Testing__c>();
	List<DataLoadTest__c> lstdlt = new List<DataLoadTest__c>();

	// Creating List for Wrapper class
	public List<wrapper> lstw = new List<wrapper>();

	// Get method calling from PageBlockTable and return the list of wrapper to Table
	public List<wrapper> getLstwrapperIntString() {

		lsttest = [select name,city__c from Testing__c];
		lstdlt = [select country__c,phone__c from DataLoadTest__c];
		for(Integer i=0;i<lstdlt.size();i++){
			lstw.add(new wrapper(lsttest[i].name,lsttest[i].city__c,lstdlt[i].country__c,lstdlt[i].phone__c));

		return lstw;


	// Wrapper Class Construction

	public class wrapper{

		public String Tname{get;set;}
		public String Tcity{get;set;}
		public String Dcountry{get;set;}
		public String Dphone{get;set;}
		// Wrapper class constructor

		public wrapper(String Tname,String Tcity,String Dcountry,String Dphone){



Create a VF Page with the controller

<!-- Creating this page for dispaly Testing__c and DataLoadTesting__c object in single table with check box -->
<apex:page sidebar="false" controller="WrapperIntStringDisplayClass">
<apex:form >
<apex:pageBlock >
<apex:pageBlockSection >
<apex:pageBlockTable value="{!lstwrapperIntString}"             var="w">
<apex:column headervalue="Action">
<apex:inputcheckbox />
<apex:column headervalue="TestingName">
<apex:column headerValue="TestingCity">
<apex:column headervalue="DataLoadCountry">
<apex:column headerValue="DataLoadPhone">