I'm getting the error

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Java

(Compilation Errors Main.java:69: error: cannot find symbol shipmentEntity[k].display(); ^ symbol: method display() location: class ShipmentEntity 1 error) for the below program..

What I have tried:

ShipmentEntity.java
  public class ShipmentEntity {
protected String shipmentEntityName;
protected String identificationNumber;
ShipmentEntity()
{
    
}

public ShipmentEntity(String shipmentEntityName, String identificationNumber) {
    super();
    this.shipmentEntityName = shipmentEntityName;
	this.identificationNumber = identificationNumber;
}
public String getShipmentEntityName() {
	return shipmentEntityName;
}
public void setShipmentEntityName(String shipmentEntityName) {
	this.shipmentEntityName = shipmentEntityName;
}
public String getIdentificationNumber() {
	return identificationNumber;
}
public void setIdentificationNumber(String identificationNumber) {
	this.identificationNumber = identificationNumber;
}





}

import java.io.*;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
public class Main {

public static void main(String args[]) throws IOException, ParseException
{
BufferedReader buf= new BufferedReader(new InputStreamReader(System.in));
System.out.println("Enter the number of shipment entity");
int n = Integer.parseInt(buf.readLine());
int arrcusvalue=0;
int arrcomvalue=0;
int arragnvalue=0;
int arrcarvalue=0;
Customer[] customer=new Customer[n];
int cuslength=0;
int comlength=0;
int carrlength=0;
int agnlength=0;
Company[] company=new Company[n];
Carrier[] carrier=new Carrier[n];
Agent[] agent=new Agent[n];
for (int i = 0; i <n; i++)
{

System.out.println("Enter the shipment entity "+(i+1)+" details :");
System.out.println("Select the shipment entity type");
System.out.println("1)Customer");
System.out.println("2)Company");
System.out.println("3)Agent");
System.out.println("4)Carrier");
int enttype = Integer.parseInt(buf.readLine());

if (enttype==1)
{
String[] val = buf.readLine().split(",");
int invalue=Integer.parseInt(val[2]);
customer[cuslength++]=Customer.createRecord(val[0],val[1],invalue,val[3]);
arrcusvalue=arrcusvalue+1;
}
if (enttype==2)
{
String[] val = buf.readLine().split(",");
company[comlength++] = Company.createRecord(val[0],val[1],val[2],val[3],val[4]);
arrcomvalue=arrcomvalue+1;
}
if (enttype==3)
{
String[] val = buf.readLine().split(",");
agent[agnlength++]=Agent.createRecord(val[0],val[1],val[2],val[3],val[4]);
arragnvalue=arragnvalue+1;
}
if (enttype==4)
{
String[] val = buf.readLine().split(",");
carrier[carrlength++]=Carrier.createRecord(val[0],val[1],val[2],val[3]);
arrcarvalue=arrcarvalue+1;
}
}
System.out.println("Shipment details are");
System.out.println("Enter the shipment entity type to display");
String entitytype;

entitytype=buf.readLine();
if (entitytype.equals("Customer"))
{
System.out.format("%-15s %-25s %-15s %-15s\n","Name","Identification Number","Customer Id","Customer Name");
for(int i=0;i<arrcusvalue;i++)
{

customer[i].display();
}

}

if (entitytype.equals("Agent"))
{
System.out.format("%-15s %-25s %-15s %-15s %-15s\n","Name","Identification Number ","Agent Name","IATA","FMC");
for(int i=0;i<arragnvalue;i++)
{

agent[i].display();
}

}
if (entitytype.equals("Company"))
{
System.out.format("%-15s %-25s %-15s %-15s %-15s\n","Name","Identification Number","Company Name","IATA","FMC");
for(int i=0;i<arrcomvalue;i++)
{

company[i].display();
}

}

if (entitytype.equals("Carrier"))
{
System.out.format("%-15s %-25s %-15s %-15s\n","Name","Identification Number","Code Name","IATA");
for(int i=0;i<arrcarvalue;i++)
{

carrier[i].display();
}

}


}
}