Help with Pausing while printing

[ftoby]

My assignement is to write a mortgage caclulator that displays x number of lines pauses then continues to dsiplay another x lines of data. Below is my code and I can not get it to work properly. It slowly prints the first 12 lines then displays everything else at once.

/**
 * Mortgage Calculator
 * Week 3 Individula assignment for Java Instructor- Troy
 * @author Frank Tobin
 */

 

import java.text.DecimalFormat;
import java.lang.Math;

 

public class MortgageCalc {

       

    /** The variables are defined in this section to be initialized later.*/

    double lAmount;   

    double lTerm;         

    double lRate;      

    double lPayment;     
    
    double mRate;
    
    double lYears;

    double iPayment;

    double pPayment;
     
    double pNumber;  

    int linecount;  
    
    DecimalFormat money = new DecimalFormat("$#,#00.00");

   
       public static void main(String args[]) {


              MortgageCalc Mortg = new MortgageCalc();        

              Mortg.calculatePaymentAmount();

              }      

       

       /** All of the variables are initialized in the following section along with the decimal format Intialized*/

       public MortgageCalc() {

           lAmount = 200000;   

           lTerm = 360.00;         

           lRate = 0.0575;      

           lPayment = 0; 
           
           lYears = lTerm/12;   
            
           pNumber = 0;
	   
           iPayment = 0;

           pPayment = 0;

           linecount = 12;

       }

        //First Calculated the interest rate per month then used in the Mortgage Calculator to determine monthly payments*/
        public void calculatePaymentAmount() {
       
        mRate = lRate/12;
        		
		lPayment = lAmount*(mRate*Math.pow(1+mRate,lTerm)/(Math.pow(1+mRate,lTerm)-1));
	// Loop for amortization list
	

        
	for (int count = 1; pNumber <= lTerm ; count++) {

	// Calculations to determine amortization
	iPayment = lAmount * mRate;
	pPayment = lPayment - iPayment;
	lAmount = lAmount - pPayment;

	
        
	System.out.println(+pNumber + ". " + (money.format(lPayment))
	+ "\t" + (money.format(lAmount))
	+ " \t" + (money.format(pPayment)) + "\t\t"
	+ (money.format(iPayment)) + "\n");
	pNumber++;
        
        if(linecount > 0)
    	{
    	linecount--;
   	 try 	{
   	 Thread.sleep(4500);        // pause to last three seconds
    	}
   	catch (InterruptedException e) 	{}
    	}    

       }
      
    }

       
      
}