public class estateGUI extends javax.swing.JFrame {
    
        public estateGUI() {        
        initComponents();    }    
        public String name, address, telephonenum, find;
    
        private void initComponents() {
        addclient = new javax.swing.JButton();
        findclient = new javax.swing.JButton();
        logo = new javax.swing.JLabel();
        cleartext = new javax.swing.JButton();
        nametextfield = new javax.swing.JTextField();
        addresstextfield = new javax.swing.JTextField();
        numtextfield = new javax.swing.JTextField();
        jLabel1 = new javax.swing.JLabel();
        jLabel2 = new javax.swing.JLabel();
        jLabel3 = new javax.swing.JLabel();
        findnametextfield = new javax.swing.JTextField();
        jLabel4 = new javax.swing.JLabel();
        displaydetails = new javax.swing.JTextPane();

        getContentPane().setLayout(new     org.netbeans.lib.awtextra.AbsoluteLayout());

        setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
        setTitle("UWE Estates");
        setCursor(new java.awt.Cursor(java.awt.Cursor.DEFAULT_CURSOR));
        setMaximizedBounds(new java.awt.Rectangle(500, 500, 400, 420));
        setName("MainFrame");
        setResizable(false);
        addWindowListener(new java.awt.event.WindowAdapter() {
            public void windowClosing(java.awt.event.WindowEvent evt) {
                exitForm(evt);
            }
        });
        addclient.setText("Add Client");
        addclient.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                addclientActionPerformed(evt);
            }
        });
        getContentPane().add(addclient, new org.netbeans.lib.awtextra.AbsoluteConstraints(10, 210, 130, -1));        findclient.setText("FIND");
        findclient.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                findclientActionPerformed(evt);
            }
        });
        getContentPane().add(findclient, new org.netbeans.lib.awtextra.AbsoluteConstraints(170, 300, 90, -1));
        logo.setBackground(new java.awt.Color(255, 255, 255));
        logo.setFont(new java.awt.Font("Arial", 1, 24));
        logo.setForeground(new java.awt.Color(51, 51, 255));
        logo.setHorizontalAlignment(javax.swing.SwingConstants.CENTER);
        logo.setText("UWE Estates");
        getContentPane().add(logo, new org.netbeans.lib.awtextra.AbsoluteConstraints(120, 20, 180, 30));
        cleartext.setText("Clear Text");
        cleartext.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                cleartextActionPerformed(evt);
            }
        });
        getContentPane().add(cleartext, new org.netbeans.lib.awtextra.AbsoluteConstraints(270, 210, 130, -1));
        nametextfield.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                nametextfieldActionPerformed(evt);
            }
        });
        getContentPane().add(nametextfield, new org.netbeans.lib.awtextra.AbsoluteConstraints(140, 80, 130, -1));
        addresstextfield.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                addresstextfieldActionPerformed(evt);
            }
        });
        getContentPane().add(addresstextfield, new org.netbeans.lib.awtextra.AbsoluteConstraints(140, 130, 130, -1));
        numtextfield.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                numtextfieldActionPerformed(evt);
            }
        });
        getContentPane().add(numtextfield, new org.netbeans.lib.awtextra.AbsoluteConstraints(140, 180, 130, -1));
        jLabel1.setHorizontalAlignment(javax.swing.SwingConstants.CENTER);
        jLabel1.setText("Add Name");
        getContentPane().add(jLabel1, new org.netbeans.lib.awtextra.AbsoluteConstraints(140, 60, 130, -1));
        jLabel2.setHorizontalAlignment(javax.swing.SwingConstants.CENTER);
        jLabel2.setText("Add Address");
        getContentPane().add(jLabel2, new org.netbeans.lib.awtextra.AbsoluteConstraints(140, 110, 130, -1));
        jLabel3.setHorizontalAlignment(javax.swing.SwingConstants.CENTER);
        jLabel3.setText("Add Telephone Number");
        getContentPane().add(jLabel3, new org.netbeans.lib.awtextra.AbsoluteConstraints(130, 160, 160, -1));

        findnametextfield.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                findnametextfieldActionPerformed(evt);
            }
        });
        getContentPane().add(findnametextfield, new org.netbeans.lib.awtextra.AbsoluteConstraints(90, 270, 260, -1));

        jLabel4.setHorizontalAlignment(javax.swing.SwingConstants.CENTER);
        jLabel4.setText("Input Name and Click Find");
        getContentPane().add(jLabel4, new org.netbeans.lib.awtextra.AbsoluteConstraints(140, 250, 160, -1));

        getContentPane().add(displaydetails, new org.netbeans.lib.awtextra.AbsoluteConstraints(90, 330, 260, 90));

        pack();
    }

    private void findclientActionPerformed(java.awt.event.ActionEvent evt) {
       
        find = findnametextfield.getText();
        
        branch newbranch = new branch();         
        newbranch.find(find);
        
    }

    private void findnametextfieldActionPerformed(java.awt.event.ActionEvent evt) {
                
    }

    private void numtextfieldActionPerformed(java.awt.event.ActionEvent evt) {
        
    }

    private void addresstextfieldActionPerformed(java.awt.event.ActionEvent evt) {
    
    }
    
    
    private void cleartextActionPerformed(java.awt.event.ActionEvent evt) {
    clearFields();        
    }

    private void addclientActionPerformed(java.awt.event.ActionEvent evt) {
       
        name = nametextfield.getText();         
        address = addresstextfield.getText();         
        telephonenum = numtextfield.getText();
        
        branch newbranch = new branch();         
        newbranch.add(name, address, telephonenum);    
    }  private void nametextfieldActionPerformed(java.awt.event.ActionEvent evt) {   
    }   
    private void exitForm(java.awt.event.WindowEvent evt) {
        System.exit(0);
    }    
    private void clearFields()
    {
        nametextfield.setText("");
        addresstextfield.setText(""); 
        numtextfield.setText(""); 
    }      public static void main(String args[]) 
    {
        new estateGUI().show();      
    }        
       private javax.swing.JButton addclient;
    private javax.swing.JTextField addresstextfield;
    private javax.swing.JButton cleartext;
    private javax.swing.JTextPane displaydetails;
    private javax.swing.JButton findclient;
    private javax.swing.JTextField findnametextfield;
    private javax.swing.JLabel jLabel1;
    private javax.swing.JLabel jLabel2;
    private javax.swing.JLabel jLabel3;
    private javax.swing.JLabel jLabel4;
    private javax.swing.JLabel logo;
    private javax.swing.JTextField nametextfield;
    private javax.swing.JTextField numtextfield;  
}

import javax.swing.*;
import java.awt.*;
import javax.swing.JOptionPane;
import java.awt.event.*;
public class branch {    
    public branch()     
    {}      
    
    public int customerID = 1;
    public int maxclients = 5;
    public int count;
    private int index = 0;
    public CustomerCollection clients = new CustomerCollection();
   
    public void add(String name, String address, String telephonenum)
    {           
        if (count < 2)
        {   
           count++;        
           clients.addClient(name,address,telephonenum);    
          
           JOptionPane.showMessageDialog(null, "Client Stored \n" +name+ "\n" 
           + address + "\n" + telephonenum);          
           
        }
        else 
        {
             JOptionPane.showMessageDialog(null, "Error. Maximum number of" +
             "clients exceeded");             
        }         
    }    
    public void amend()
    {}    
    public void delete()
    {}    
    public void find(String details)
    {        
       clients.findclient(details);        
    }
    
    public void print()
    {}
}

import javax.swing.*;
import java.awt.*;
import javax.swing.JOptionPane;
import java.awt.event.*;
public class CustomerCollection
{   
   public Client[] collection;    
   private int arraySize = 5;
   private int index = 0;
  
   public CustomerCollection ()
   {
      collection = new Client[arraySize];      
   } 
   
   public void addClient (String name, String address, 
   String telephonenum)
   {      
        if(index == collection.length)
                    {           
             collection[index] = new Client (name,address,telephonenum);          
        }    index++;
   }
   
   public void findclient(String details)
   {       
   }

public void findclient(String details)
{
   for(int x=0; x<arraySize; x++) {
      //I donno how your Client class is defined, but you'll need a method that 
      //returns the name
      if( (collection[x].getName()).equalsIgnoreCase(details)) {
           //Found it! do whatever you want here.
      }
   }
}