Hi,
I’m a beginner java programmer and I’ve tried to run a program that imports following packages:
import java.io.*; import java.awt.*; import java.awt.event.*; import java.swing.*; import java.swing.border.*;
But when I hit CTRL + B, I got errors like this and so on:
AddressBook.java:4: error: package java.swing does not exist import java.swing.*; ^ AddressBook.java:5: error: package java.swing.border does not exist import java.swing.border.*; ^ AddressBook.java:7: error: cannot find symbol public class AddressBook extends JFrame { ^ symbol: class JFrame AddressBook.java:21: error: cannot find symbol private JTextField jtfName = new JTextField(NAME_SIZE); ^ symbol: class JTextField location: class AddressBook
What’s the matter? How can I import those packages?