File access methods: The data contents that are present in a file can be accessed by the following two ways: • Sequential access • Random access or direct access Sequential access file: In sequential access method, the contents of the file are accessed from the beginning to the end. • The contents of the file can be read only in order; skipping contents between files is not possible. • It must read the contents from the beginning of the file, which takes more time. Temporary file: The purpose of a temporary file is to allocate a file for temporary usage. It is used to hold data temporarily for implementation of program.

Question

Want to see the full answer?

Answer 1

Question

Chapter 6.3, Problem 18CP

Program Plan Intro

File access methods:

The data contents that are present in a file can be accessed by the following two ways:

• Sequential access

• Random access or direct access

Sequential access file:

In sequential access method, the contents of the file are accessed from the beginning to the end.

• The contents of the file can be read only in order; skipping contents between files is not possible.

• It must read the contents from the beginning of the file, which takes more time.

Temporary file:

The purpose of a temporary file is to allocate a file for temporary usage. It is used to hold data temporarily for implementation of program.

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Students have asked these similar questions

Create a Database in JAVA Netbeans that saves name of the player and how many labyrinths did the player solve. Record the number of how many labyrinths did the player solve, and if he loses his life, then save this number together with his name into the database. Create a menu item, which displays a highscore table of the players for the 10 best scores public class GameGUI extends JPanel { private final Labyrinth labyrinth; private final Player player; private final Dragon dragon; private void checkGameState() { if (player.getX() == 0 && player.getY() == labyrinth.getSize() - 1) { JOptionPane.showMessageDialog(this, "You escaped! Congratulations!"); System.exit(0); } if (Math.abs(player.getX() - dragon.getX()) <= 1 && Math.abs(player.getY() - dragon.getY()) <= 1) { JOptionPane.showMessageDialog(this, "The dragon caught you! Game Over."); System.exit(0); } } } public…

Create a Database in JAVA OOP that saves name of the player and how many labyrinths did the player solve. Record the number of how many labyrinths did the player solve, and if he loses his life, then save this number together with his name into the database. Create a menu item, which displays a highscore table of the players for the 10 best scores. Also, create a menu item which restarts the game. public class GameGUI extends JPanel { private final Labyrinth labyrinth; private final Player player; private final Dragon dragon; private void checkGameState() { if (player.getX() == 0 && player.getY() == labyrinth.getSize() - 1) { JOptionPane.showMessageDialog(this, "You escaped! Congratulations!"); System.exit(0); } if (Math.abs(player.getX() - dragon.getX()) <= 1 && Math.abs(player.getY() - dragon.getY()) <= 1) { JOptionPane.showMessageDialog(this, "The dragon caught you! Game Over.");…

Change the following code so that the player can see only the neighboring fields at a distance of 3 units. public class GameGUI extends JPanel { private final Labyrinth labyrinth; private final Player player; private final Dragon dragon; private final ImageIcon playerIcon = new ImageIcon("data/images/player.png"); private final ImageIcon dragonIcon = new ImageIcon("data/images/dragon.png"); private final ImageIcon wallIcon = new ImageIcon("data/images/wall.png"); private final ImageIcon emptyIcon = new ImageIcon("data/images/empty.png"); public GameGUI(Labyrinth labyrinth, Player player, Dragon dragon) { this.labyrinth = labyrinth; this.player = player; this.dragon = dragon; setFocusable(true); addKeyListener(new KeyAdapter() { @Override public void keyPressed(KeyEvent e) { char move = switch (e.getKeyCode()) { case KeyEvent.VK_W -> 'W'; case…