单击jComboBox中的项目时,如何在jTextField中设置值?
就像当我在jComboBox中选择Platinum时,jTextField将显示其值,例如15%或Gold,并将jTextField设置为10%

membox.addItemListener(new ItemListener() {
@Override
public void itemStateChanged(ItemEvent e) {

    if(e.getStateChange() == ItemEvent.SELECTED) {

        jTextField6.setText((String) membox.getSelectedItem());
    }
}


});

我卡在这里,它只显示我在jComboBox中单击的内容,将不胜感激,谢谢您提前

最佳答案

建立课程

public class ItemClass {
private String name;
private String value;

public ItemClass(String name1, String value1) {
    name = name1;
    value = value1;
}

@Override
public String toString()
{
    return name;
}

public String getValue() {
    return value;
}
}


并在您的代码中添加此代码...

    ItemClass oro = new ItemClass("gold","10%");
    ItemClass platino = new ItemClass("platinum","15%");
    JComboBox jc = new JComboBox();
    jc = membox;
    jc.addItem(oro);
    jc.addItem(platino);

membox.addItemListener(new ItemListener() {

@Override
public void itemStateChanged(ItemEvent e) {

    if(e.getStateChange() == ItemEvent.SELECTED) {
        Object obj=(Object) membox.getSelectedItem();
        ItemClass itemclass=(ItemClass)obj;
        String value = itemclass.getValue();
        jTextField6.setText(value);
    }
}

});

10-01 06:35