Using Java Standard Classes

• To use a class from the Java Standard Library, you must import it:

  • import java.util.Stack;

• Often, you need more than one class from a package. For example, instead of importing each of:

  • javax.swing.JButton,
  • javax.swing.JPanel, and
  • javax.swing.JFileChooser

• you can just do:

  • import javax.swing.*;