How do display the contents of List<>

[Nimu Chox]

I am new to this
I created the method that is intended to display all the contents in an array:

public List<Customer> findAll() {

for (Customer customerElement : CustomerList)
{
System.out.println( customerElement );
}

}

"Error : Missing statement"


I have tried to change to the following:
public customer findAll() {

for (Customer customerElement : CustomerList)
{
System.out.println( customerElement );
}

}
but still the same error, please help.

[Winston Gutkowski]

Nimu Chox wrote:I created the method that is intended to display all the contents in an array:
...
"Error : Missing statement"...

I suspect you're getting a lot more information than just that. Please provide the entire stack trace exactly as it was produced.

Also, please UseCodeTags (←click).

Winston

[Nimu Chox]

PrintAll() is complaining return type is missing, thanks in advance

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package javaapplication_List;

import java.util.List;

/**
 *
 * @author 
 */
interface CustomerSrvice{
    public void delete (Customer customer);
    public void addnewcustomer(Customer customer);
    List<Customer> findAll();
    
    
}


/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package javaapplication_List;

import java.util.Iterator;
import java.util.List;
import java.util.ArrayList;


/**
 *
 * @author 
 */
public class CustomerServiceImpl implements CustomerSrvice{
    
   Customer customer;
    
    List<Customer> CustomerList= new ArrayList<Customer>();

    @Override
    public void delete(Customer customer) {
        CustomerList.remove(customer);
    }

    @Override
    public void addnewcustomer(Customer customer) {
        CustomerList.add(customer);
        
    }

    @Override
    public List<Customer> findAll() {

    for (Customer customerElement : CustomerList)
    {
    System.out.println( customerElement );
    }
    
           
    }
    
    
    
    }
   

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package javaapplication_List;

/**
 *
 * @author 
 */
public class Customer {
    
   
    private String customerId;
    private String firstName;
    private String lastName;
    
    public Customer(String customerId, String firstName,String lastName){
        this.customerId=customerId;
        this.firstName=firstName;
        this.lastName=lastName;
  
    }
    
    public String toString() {
		return ("CustomerID: " + customerId  +
		" First Name: " + firstName + " Last Name: "+lastName);
	}
    
    public void setCustomerId(String CustomerId){
        this.customerId=customerId;
    }

    public String getCustomerId(){
        return customerId;
    }
   
    
    public void setFirstName(String firstName){
        this.firstName=firstName;
    }
    
     public String geFirstName(){
        return lastName;
    }
    
    public String getLastName(){
        return firstName;
    }
    
    public void getLasttName(String lastName){
        this.lastName=lastName;
    }
   
    
}


/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package javaapplication_List;

import javaapplication_List.Customer;

/**
 *
 * @author 
 * 
 */
public class JavaApplication {

   
   
    /**
     * @param args the command line arguments
     */
    
    public static void main(String[] args) {
        // TODO code application logic here
      
        Customer newcust= new Customer("Id","fname","Lname");
        Customer newcust2= new Customer("Id2","fname2","Lname2");
        CustomerServiceImpl CustomerServiceIpmlTest=new CustomerServiceImpl();
        CustomerServiceIpmlTest.addnewcustomer(newcust);  
        CustomerServiceIpmlTest.addnewcustomer(newcust2);
        System.out.println("Two customer objects will be shown");
        System.out.print(CustomerServiceIpmlTest.findAll());
        CustomerServiceIpmlTest.delete(newcust);
        System.out.println(" customer objects will be shown");
        System.out.print(CustomerServiceIpmlTest.findAll());
        
    }

   
}
         
            

[Winston Gutkowski]

Nimu Chox wrote: PrintAll() is complaining return type is missing, thanks in advance

Actually, I think you mean findAll(), and I suspect that it's complaining that you're NOT returning anything, not that the return type is missing.

As I said before, please post the exact message you are getting (all of it).

And also: fields and methods should start with a lowercase letter. It's not a language requirement, but it is an established convention, so you should stick to it.

Winston

[James Boswell]

Check the return type defined for findAll() method and then take a look at your implementation of it.

[Nimu Chox]

Thanks alot. One more thing, How can I print the "stack trace" of my program?

[Winston Gutkowski]

Nimu Chox wrote:Thanks alot. One more thing, How can I print the "stack trace" of my program?

Well, usually you do it when you get an Exception, in which case it's {name-of-Exception}.printStackTrace(), but you can also print it out for the current Thread via Thread.currentThread().

However, if you got an error when you compiled, the message you already posted will have been part of a larger stack trace that includes method names and line numbers. Just copy and paste that.

Winston