Largura de colunas no JTable

private void initComponents() {

jTabbedPane1 = new javax.swing.JTabbedPane();

jTable1 = new javax.swing.JTable();

…

…

[color=“red”]jTable1.setMinimumSize(new java.awt.Dimension(70, 80));[/color]

…

…

jTabbedPane1.addTab(“tab1”, jTable1);

getContentPane().add(jTabbedPane1, java.awt.BorderLayout.CENTER);

pack();
}