在下列E类中的text中输入apple回车,System.out.println的输出结果是( ) import java.awt.*; import java.awt.event.*; public class E extends javax.swing.JFrame{ javax. swing.JTextField text; E( ) { text=new javax.swing.JTextField (12) ; text.setActionCommand ( "你好 Java") ; text .addActionListener (new ActionListener ( ) { public void actionPerformed(ActionEvent e) { System.out.println (text.getText ( )) ; System.out.println ( e.getActionCommand( ) ); } } ) ; add (text, BorderLayout.NORTH) ; setBounds (120, 125, 250,150) ; setVisible (true) ; } public static void main(string s[]) { new E(); } }