151。AllCapsDemo.javaimport java.io.*;String sourceName File source = new File(sourceName); FileReader fr = new FileReader(source); BufferedReader in = new BufferedReader(fr);FileWriter fw = new FileWriter(temp); BufferedWriter out = new B…

14天import java.awt.*;import javax.swing.*;import java.awt.event.*;public class AddTwoApplet extends JApplet implements ActionListenerpublic void actionPerformed(ActionEvent evt) {try {int value1 = Integer.parseInt(one.getText());int value…