JComboBox jComboBox1 = new JComboBox();
jComboBox1.addItem("test1");
jComboBox1.addItem("9999");
jComboBox1.setSelectedIndex(1);
//取选中的Item值
System.out.println(jComboBox1.getSelectedItem());
jComboBox1.addItem("test1");
jComboBox1.addItem("9999");
jComboBox1.setSelectedIndex(1);
//取选中的Item值
System.out.println(jComboBox1.getSelectedItem());
解决方案 »
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