超星 - 6.6 小测验

单选题

6.1 JComboBox类中添加列表选项的方法是( )

A. removeItem(Object anObject)
B. addItem(Object anObject)
C. getItemAt(int index)
D. setSelectedItem(Object anObject)

单选题

A. getSelectedIndex()
B. getSelectedValue()
C. getSelectedIndices()
D. setSelectionMode(int selectionMode)

单选题

A. getColumn(Object identifier)
B. getColumnModel()
C. getColumnName(int column)
D. getValueAt(int rowIndex, int columnIndex)