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  Q: java.lang.Nullpointerexception in this code

  This gives java.lang.Nullpointerexception error in these two classes. import javax.swing.JButton; import javax.swing.JPanel; import javax.swing.JTextArea; import javax.swing.JTextField; public class…

  java swing thread nullpointerexception

  asked 9 years, 11 months ago Usuário 23