How to make a square in java?

  1. Multiply the number by itself.
  2. Call the Math. pow function.

How do you square in Java?

Squaring a number in Java can be accomplished in two ways. One is by multiplying the number by itself. The other is by using the Math. pow() function, which takes two parameters: the number being modified and the power by which you’re raising it.

How do you create a box in Java?

Box box = new Box(BoxLayout. X_AXIS); box. add(button1); box.

How do you draw a shape in Java?

  1. Create a new Frame .
  2. Create a class that extends the Component class and override the paint method.
  3. Use Graphics2D.
  4. Use Graphics2D.
  5. Use Graphics2D.
  6. Use Graphics2D.

How do you draw a square in Java applet?

Similarly, we will draw a rectangle on Java applet by two ways . By using the drawRect(int x, int y, int width, int height) or by drawing four lines joining the edges . At a position 100,100 on the applet. Input : x and y coordinates 100, 100 respectively Width and height 200 and 200 respectively.

What is the formula of the square root?

The square root formula is used to find the square root of a number. We know the exponent formula: n√x x n = x1/n. When n= 2, we call it square root. We can use any of the above methods for finding the square root, such as prime factorization, long division, and so on.

What is Pi in Java?

PI is a static final double constant in Java, equivalent to in π Mathematics.” Provided by java. lang. Math class, Math. PI constant is used to carry out multiple mathematical and scientific calculations like finding the area & circumference of a circle or the surface area and volume of a sphere.

What is a JPanel?

JPanel, a part of Java Swing package, is a container that can store a group of components. The main task of JPanel is to organize components, various layouts can be set in JPanel which provide better organisation of components, however it does not have a title bar.

How do you code a ComboBox in Java?

  1. import javax.swing.*;
  2. import java.awt.event.*;
  3. public class ComboBoxExample {
  4. JFrame f;
  5. ComboBoxExample(){
  6. f=new JFrame(“ComboBox Example”);
  7. final JLabel label = new JLabel();
  8. label.setHorizontalAlignment(JLabel.CENTER);

Can you draw on Java?

There are several ways to create graphics in Java; the simplest way is to use java. awt. Canvas and java. … The Graphics class provides basic drawing methods such as drawLine , drawRect , and drawString .

What is Graphics in Java?

The Graphics class is the abstract base class for all graphics contexts that allow an application to draw onto components that are realized on various devices, as well as onto off-screen images. A Graphics object encapsulates state information needed for the basic rendering operations that Java supports.

What are shapes Java?

The Shape interface provides definitions for objects that represent some form of geometric shape. The Shape is described by a PathIterator object, which can express the outline of the Shape as well as a rule for determining how the outline divides the 2D plane into interior and exterior points.

What is fillRect in Java?

public abstract void fillRect(int x, int y, int width, int height): is used to fill rectangle with the default color and specified width and height. … public abstract void fillOval(int x, int y, int width, int height): is used to fill oval with the default color and specified width and height.

Which method is used to draw square?

Draw a side of the square using ruler. Keep track of the length of this side so you can make all four sides the same length. Considering the side drawn in the previous step as one of the arms, construct a right angle on each end of it.

What is applet life cycle?

Applet life cycle defined as how the object created, started, stopped and destroyed during the entire execution of the application is said to applet life cycle. … These methods are invoked by the browser to execute. Applet works on the client side so, less processing time.

What is algebra formula?

Algebraic equation, statement of the equality of two expressions formulated by applying to a set of variables the algebraic operations, namely, addition, subtraction, multiplication, division, raising to a power, and extraction of a root. Examples are x3 + 1 and (y4x2 + 2xy – y)/(x – 1) = 12.