Java GUI Programming: A Comprehensive Guide
Java GUI Programming
Displaying Two-Dimensional Objects in Java
import javax.swing.*;
import java.awt.*;
public class DrawingPanel extends JPanel {
@Override
protected void paintComponent(Graphics g) {
super.paintComponent(g);
g.setColor(Color.RED);
g.drawRect(50, 50, 100, 100);
g.setColor(Color.BLUE);
g.fillOval(200, 50, 100, 100);
}
public static void main(String[] args) {
JFrame frame = new JFrame("2D Drawing");
frame.setDefaultCloseOperation(Database Management Systems: A Comprehensive Guide
Database Management Systems
Introduction
Data storage requires defining two key features: Logical Design (user-level design, how users view and manage data) and Physical Design (implementation-level design, how data is stored on disks). Two primary types of physical design exist: data files and databases.
Database Concepts
Database (DB)
A collection or integrated data warehouse stored on secondary storage with controlled redundancy. Data should remain independent of applications and support a data model
Read MoreAnalyzing Security Vulnerabilities and Exploits
Password Security and Data Breaches
Yes. Recall that some passwords are much more popular than others. For example, the password “123456” is used by at least 0.1% of all accounts. Thus, if you hash such passwords and they appear disproportionately in the list then you might infer that the list is not hashed. Similarly, even without doing a hash, if you sort the hashes by frequency, in an unsalted list you will expect that there is some hash that occurs with frequency ~ 0.1%, whereas in a salted list
Read MoreAnalyzing Security Vulnerabilities and Exploits
Password Security and Data Breaches
Yes. Recall that some passwords are much more popular than others. For example, the password “123456” is used by at least 0.1% of all accounts. Thus, if you hash such passwords and they appear disproportionately in the list then you might infer that the list is not hashed. Similarly, even without doing a hash, if you sort the hashes by frequency, in an unsalted list you will expect that there is some hash that occurs with frequency ~ 0.1%, whereas in a salted list
Read MoreAnalyzing Security Vulnerabilities and Exploits
Password Security and Data Breaches
Yes. Recall that some passwords are much more popular than others. For example, the password “123456” is used by at least 0.1% of all accounts. Thus, if you hash such passwords and they appear disproportionately in the list then you might infer that the list is not hashed. Similarly, even without doing a hash, if you sort the hashes by frequency, in an unsalted list you will expect that there is some hash that occurs with frequency ~ 0.1%, whereas in a salted list
Read MoreComputer Security Concepts
Password Security
Yes. Recall that some passwords are much more popular than others. For example, the password “123456” is used by at least 0.1% of all accounts. Thus, if you hash such passwords and they appear disproportionately in the list then you might infer that the list is not hashed. Similarly, even without doing a hash, if you sort the hashes by frequency, in an unsalted list you will expect that there is some hash that occurs with frequency ~ 0.1%, whereas in a salted list it will be ~0.
Read More