Alshifa Hasnain has Published 283 Articles

What are the differences between paint() method and repaint() method in Java?

Alshifa Hasnain

Alshifa Hasnain

Updated on 15-Apr-2025 19:15:15

7K+ Views

In this article, we will learn about the differences between the paint() method and the repaint() method in Java. In the AWT and Swing frameworks, rendering graphical components is done in two different roles by the two methods paint() and repaint(). The paint() Method This method holds instructions to paint ... Read More

How can we minimize/maximize a JFrame programmatically in Java?

Alshifa Hasnain

Alshifa Hasnain

Updated on 15-Apr-2025 19:14:55

5K+ Views

In this article, we will learn to minimize/maximize a JFrame programmatically in Java. In Swing, programmers often need to resize the window as needed. For example, they can shrink the window when carrying out background tasks or expand the window size for a better full-screen experience. What is a JFrame? ... Read More

What is the importance of a Cursor class in Java?

Alshifa Hasnain

Alshifa Hasnain

Updated on 14-Apr-2025 19:25:36

2K+ Views

In this article, we will learn about the importance of the Cursor class in Java. Under the Swing toolkit, the Cursor class provides an improved user experience by providing graphical(visual) feedback. What is a Cursor class? A Cursor is a subclass of the Object class, and it can be defined ... Read More

Difference between Tree Set and Hash Set in Java

Alshifa Hasnain

Alshifa Hasnain

Updated on 14-Apr-2025 12:15:27

18K+ Views

In Java,  HashSet and TreeSet both belong to the collection framework. HashSet is the implementation of the Set interface, whereas TreeSet implements a sorted set. TreeSet is backed by TreeMap while HashSet is backed by a HashMap. Difference Table The following are the key differences between HashSet and TreeSet : ... Read More

What are the differences between JTextField and JTextArea in Java?

Alshifa Hasnain

Alshifa Hasnain

Updated on 11-Apr-2025 22:24:05

5K+ Views

The main difference between JTextField and JTextArea in Java is that a JTextField allows entering a single line of text in a GUI application while the JTextArea allows entering multiple lines of text in a GUI application. JTextField The following are the key characteristics of JTextField in Java: A JTextFeld is one ... Read More

Explain the basic structure of a program in Java?

Alshifa Hasnain

Alshifa Hasnain

Updated on 11-Apr-2025 13:59:18

6K+ Views

In this article, we will learn about the basic structure of a program in Java. Java is widely used for developing large-scale applications, including Android apps, web applications, and enterprise software. To write a Java program, it's essential to understand its basic structure, which consists of several key components. Components ... Read More

What are the different types of JOptionPane dialogs in Java?

Alshifa Hasnain

Alshifa Hasnain

Updated on 11-Apr-2025 12:24:55

10K+ Views

The JOptionPane is a subclass of the JComponent class, which includes static methods for creating and customizing modal dialog boxes using a simple code. The JOptionPane is used instead of JDialog to minimize the complexity of the code. The JOptionPane displays the dialog boxes with one of the four standard icons ... Read More

What is the importance of the Container class in Java?

Alshifa Hasnain

Alshifa Hasnain

Updated on 11-Apr-2025 12:18:27

10K+ Views

In this article, we will learn about the importance of the Container class in Java. The Container class plays a vital role in creating graphical user interfaces (GUIs) and managing the layout of components. What is the Container Class? A Container class can be described as a special component that ... Read More

Can we define a parameterized constructor in an abstract class in Java?

Alshifa Hasnain

Alshifa Hasnain

Updated on 09-Apr-2025 19:33:58

4K+ Views

A common question in Java OOPs is whether abstract classes can have parameterized constructors. Yes, we can define a parameterized constructor in an abstract class. What is a Parameterized Constructor in Java A parameterized constructor is a special type of class constructor that accepts parameters/arguments when creating an object. Unlike ... Read More

Print Hello World without semicolon in C++

Alshifa Hasnain

Alshifa Hasnain

Updated on 07-Apr-2025 12:11:49

2K+ Views

In this article, we will learn to print Hello World without a semicolon in C++. The semicolon (;) is used to terminate statements. The above can be achieved by using control structures like loops, conditionals, or function calls. Different Approaches There are multiple ways to write a C++ program without ... Read More

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