QA

Question: How Can Draw Many Star In Java Graphic

How do you draw a star in Java applet?

“draw star java applet using drawline function” Code Answer import javax. swing. *; import java. awt. *; ​ class Scratch extends JComponent{ public static void main(String[] args) { JFrame window = new JFrame(); // creates a JFrame. window. setTitle(“Example”); //sets the title. window. setSize(600, 600); //sets the size.

How do you draw a graphic circle in Java?

Problem: The Java Graphics class draws a circle with drawOval() , whose parameters are not entirely intuitive. It uses a point at the top left of an imaginary bounding rectangle and the width and height. The standard way of of thinking about a circle is the center point and the radius.

How do you draw a pentagon in Java?

To draw and fill the pentagon, we can call the polygon methods sending the corner coordinates in the order listed. int [] pentagonX = { 260, 498, 407, 113, 22 }; int [] pentagonY = { 10, 183, 462, 462, 183 }; You must fill the polygon before drawing the border; otherwise the fill will cover the border.

What is shape in 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.

How do you create a polygon in Java?

The polygon comprises of set of (x, y) coordinate pairs where each pair is the vertex of the polygon.Draw a Polygon in Java Applet drawPolygon(int[] x, int[] y, int numberofpoints) : draws a polygon with the given set of x and y points. drawPolygon(Polygon p) : draws a polygon with the given object of Polygon class.

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.

How do you draw a circle using graphic methods?

Draw a Circle Using the drawOval() Function in Java In the first example, we use the method drawOval() of the Graphics2D class that could create oval shapes, but to create a perfect circle. To draw the circle, we first override the function paint(Graphics g) that has paints the component using the Graphics class.

How do you draw a shape in Java applet?

To Draw Various Shapes Using Applet In Java Program import java.awt.*; import java.applet.*; public class shap extends Applet. { public void paint(Graphics g) { g.drawLine(25,25,100,25); g.drawRect(25,40,100,50);.

How do you draw a graph in Java applet?

Draw Line Graph in Java Applet import java. awt.*; import java. applet.*; public class Line_Graph extends Applet. { int x[]={ 0, 60, 120, 180, 240, 300, 360, 400}; int y[]={ 400, 280, 220, 140, 60, 60, 100, 220}; int z=x. length; public void paint(Graphics g).

What is polygon in Java?

The Polygon class encapsulates a description of a closed, two-dimensional region within a coordinate space. Internally, a polygon comprises of a list of (x,y) coordinate pairs, where each pair defines a vertex of the polygon, and two successive pairs are the endpoints of a line that is a side of the polygon.

How do you draw a polygon?

To draw a polygon, follow these steps: Select the Polygon tool. Click in the drawing area to place the polygon’s center point. (Optional) By default, polygons have 5 sides. Move the cursor in or out from the center point to size the polygon and click to finish the shape.

How do you draw a shape in Java?

Basically, all you have to do in order to draw shapes in a Java application is: Create a new Frame . Create a class that extends the Component class and override the paint method. Use Graphics2D. Use Graphics2D. Use Graphics2D. Use Graphics2D.

How do you draw a rectangle in Java?

In Java, to draw a rectangle (outlines) onto the current graphics context, we can use the following methods provided by the Graphics/Graphics2D class: drawRect(int x, int y, int width, int height) draw3DRect(int x, int y, int width, int height, boolean raised) draw(Rectangle2D)Aug 10, 2019.

How do you draw a square shape in Java?

To draw a square we need to know that: A square has a width and a height, both are equal size. The way to draw a square in Swing is with drawRect(x, y, width, height) draw(Shape) of the Graphics2D method where Shape would be an instance of Rectangle2D.

How do you draw and fill a polygon in Java?

To draw or fill a Polygon Use the Graphics methods g. drawPolygon(p) or g. fillPolygon(p) to draw or fill a polygon, where p is the polygon.

Which figure is a polygon?

A polygon is any 2-dimensional shape formed with straight lines. Triangles, quadrilaterals, pentagons, and hexagons are all examples of polygons. The name tells you how many sides the shape has. For example, a triangle has three sides, and a quadrilateral has four sides.

What are the three ways of drawing polygons?

Decide what kind of regular polygon to draw. You can draw a regular polygon using a circle. You can draw a square. You can draw a regular pentagon, with five equal sides/angles. You can draw a regular hexagon, with six equal sides/angles. You can draw a regular octagon, with eight equal sides/angles.

What is a Graphics object?

The Graphics object represents a GDI+ drawing surface, and is the object that is used to create graphical images. Using the Graphics object to draw lines and shapes, render text, or display and manipulate images.

How do you create a Graphics class object in Java?

B. 1 Creating graphics Create a JFrame object, which is the window that will contain the canvas. Create a Drawing object (which is the canvas), set its width and height, and add it to the frame. Pack the frame (resize it) to fit the canvas, and display it on the screen.

What are the methods of Graphics class?

Graphics Class Methods Method Description DrawArc Draws an arc (a portion of an ellipse specified by a pair of coordinates, a width, a height, and start and end angles). DrawBezier Draws a Bézier curve defined by four Point structures. DrawBeziers Draws a series of Bézier splines from an array of Point structures.

How do you draw a circle in Java applet?

Example: import java. awt.*; import java. applet.*; public class circle extends Applet. { public void paint(Graphics g) { g. drawOval(20,20,200,120); g. setColor(Color. green);.

How do you make a circle in Java?

9 Answers. The fillOval fits an oval inside a rectangle, with width=r, height = r you get a circle. If you want fillOval(x,y,r,r) to draw a circle with the center at (x,y) you will have to displace the rectangle by half its width and half its height.

Which method is used to draw a circle in Java?

drawOval() is method use to draw a circle in java.