importjavax.swing.*;importjava.awt.event.*;/** *Compilado com jdk1.5.0_04 * *@author Roberto *@since 29/09/06 * */publicclassJTextFieldSwingUIextendsJFrameimplementsActionListener{privateJTextFieldtexto1;privateJTextFieldtexto2;privateJButtonbotao;JTextFieldSwingUI(){super("JTextFieldSwingUI");botao=newJButton("OK");texto1=newJTextField();texto1.addActionListener(this);texto2=newJTextField();texto2.addActionListener(this);texto1.setBounds(10,10,200,20);texto2.setBounds(10,40,200,20);this.getContentPane().add(texto1);this.getContentPane().add(texto2);this.getContentPane().setLayout(null);setSize(250,150);setVisible(true);}publicstaticvoidmain(Stringargs[]){newJTextFieldSwingUI();}publicvoidactionPerformed(ActionEvente){if(e.getSource()==texto1)// Manda o foco para o texto 2texto2.requestFocus();elseif(e.getSource()==texto2)// Manda o foco para o texto 1texto1.requestFocus();}}