JAVA PROGRAM FOR String Operations in swing: import java.awt.*; import java.lang.*; import java.awt.event.*; import javax.swing.*; /*<applet code="StrOp" width=400 height=400></applet>*/ public class StrOp extends JApplet implements ActionListener { JTextField text5; JTextField text4; JTextField text3; JTextField text2; JTextField text1; public void init() { Container contentPane=getContentPane(); contentPane.setLayout(new GridLayout(5,2,40,40)); ...