Java The Complete Reference, Seventh Edition

948 Part IV: Applying Java whererateOfRetspecifies the rate of return,regWDcontains the desired regular withdrawal, wdPerYearspe ...

Chapter 32: Financial Applets and Servlets 949 public void run() { makeGUI(); // initialize the GUI } }); } catch(Exception exc) ...

950 Part IV: Applying Java gbag.setConstraints(regWDText, gbc); gbc.gridwidth = GridBagConstraints.RELATIVE; gbag.setConstraints ...

Chapter 32: Financial Applets and Servlets 951 fields are completed. */ public void actionPerformed(ActionEvent ae) { double res ...

952 Part IV: Applying Java $500,000 in a retirement account, how much can you take out each month for 20 years, assuming a 6 per ...

Chapter 32: Financial Applets and Servlets 953 public void init() { try { SwingUtilities.invokeAndWait(new Runnable () { public ...

954 Part IV: Applying Java gbc.gridwidth = GridBagConstraints.RELATIVE; gbag.setConstraints(periodLab, gbc); gbc.gridwidth = Gri ...

Chapter 32: Financial Applets and Servlets 955 String orgPStr = orgPText.getText(); String periodStr = periodText.getText(); Str ...

// Find the remaining balance on a loan. import java.awt.*; import java.awt.event.*; import javax.swing.*; import java.text.*; / ...

} } // Set up and initialize the GUI. private void makeGUI() { // Use a grid bag layout. GridBagLayout gbag = new GridBagLayout( ...

958 Part IV: Applying Java gbc.gridwidth = GridBagConstraints.REMAINDER; gbag.setConstraints(rateText, gbc); gbc.gridwidth = Gri ...

String payStr = paymentText.getText(); try { if(orgPStr.length() != 0 && numPayStr.length() != 0 && rateStr.leng ...

Converting the RegPay Applet into a Servlet It is fairly easy to convert theRegPayloan calculating applet into a servlet. First, ...

numYears = Double.parseDouble(periodStr); intRate = Double.parseDouble(rateStr) / 100; payStr = nf.format(compute()); } else { / ...

e = -(payPerYear * numYears); b = (intRate / payPerYear) + 1.0; denom = 1.0 - Math.pow(b, e); return numer / denom; } } The firs ...

The simplest way to invokeRegPaySis to link to its URL without passing any parameters. For example, assuming that you are using ...

This page intentionally left blank ...

33 Creating a Download Manager in Java H ave you ever had an Internet download interrupted, putting you back at square one? If y ...

Understanding Internet Downloads To understand and appreciate the Download Manager, it’s necessary to shed some light on how Int ...

Chapter 33: Creating a Download Manager in Java 967 The Download Class TheDownloadclass is the workhorse of the Download Manager ...