[java] Preferred way of getting the selected item of a JComboBox

HI,

Which is the correct way to get the value from a JComboBox as a String and why is it the correct way. Thanks.

String x = JComboBox.getSelectedItem().toString();

or

String x = (String)JComboBox.getSelectedItem();

String x = JComboBox.getSelectedItem().toString();

will convert any value weather it is Integer, Double, Long, Short into text on the other hand,

String x = String.valueOf(JComboBox.getSelectedItem());

will avoid null values, and convert the selected item from object to string

Don't cast unless you must. There's nothign wrong with calling toString().

JComboBox mycombo=new JComboBox(); //Creates mycombo JComboBox.
add(mycombo); //Adds it to the jframe.

mycombo.addItem("Hello Nepal");  //Adds data to the JComboBox.

String s=String.valueOf(mycombo.getSelectedItem());  //Assigns "Hello Nepal" to s.

System.out.println(s);  //Prints "Hello Nepal".

Note this isn't at heart a question about JComboBox, but about any collection that can include multiple types of objects. The same could be said for "How do I get a String out of a List?" or "How do I get a String out of an Object[]?"

The first method is right.

The second method kills kittens if you attempt to do anything with x after the fact other than Object methods.