How to save image?

Example 1:

import java.awt.BasicStroke;

import java.awt.Color;

import java.awt.Font;

import java.awt.FontMetrics;

import java.awt.GradientPaint;

import java.awt.Graphics2D;

import java.awt.geom.Ellipse2D;

import java.awt.image.BufferedImage;

import java.io.File;

import java.io.IOException;

import javax.imageio.ImageIO;

public class WriteImageType {

static public void main(String args[]) throws Exception {

try {

int width = 200, height = 200;

// TYPE_INT_ARGB specifies the image format: 8-bit RGBA packed

// into integer pixels

BufferedImage bi = new BufferedImage(width, height, BufferedImage.TYPE_INT_ARGB);

Graphics2D ig2 = bi.createGraphics();

Font font = new Font("TimesRoman", Font.BOLD, 20);

ig2.setFont(font);

String message = "www.java2s.com!";

FontMetrics fontMetrics = ig2.getFontMetrics();

int stringWidth = fontMetrics.stringWidth(message);

int stringHeight = fontMetrics.getAscent();

ig2.setPaint(Color.black);

ig2.drawString(message, (width - stringWidth) / 2, height / 2 + stringHeight / 4);

ImageIO.write(bi, "PNG", new File("c:\\yourImageName.PNG"));

ImageIO.write(bi, "JPEG", new File("c:\\yourImageName.JPG"));

ImageIO.write(bi, "gif", new File("c:\\yourImageName.GIF"));

ImageIO.write(bi, "BMP", new File("c:\\yourImageName.BMP"));

} catch (IOException ie) {

ie.printStackTrace();

}

}

}

Example 2:

// Create an image to save

RenderedImage rendImage = myCreateImage();

// Write generated image to a file

try {

// Save as PNG

File file = new File("newimage.png");

ImageIO.write(rendImage, "png", file);

// Save as JPEG

file = new File("newimage.jpg");

ImageIO.write(rendImage, "jpg", file);

} catch (IOException e) {

}

// Returns a generated image.

public RenderedImage myCreateImage() {

int width = 100;

int height = 100;

// Create a buffered image in which to draw

BufferedImage bufferedImage = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);

// Create a graphics contents on the buffered image

Graphics2D g2d = bufferedImage.createGraphics();

// Draw graphics

g2d.setColor(Color.white);

g2d.fillRect(0, 0, width, height);

g2d.setColor(Color.black);

g2d.fillOval(0, 0, width, height);

// Graphics context no longer needed so dispose it

g2d.dispose();

return bufferedImage;

}

java_2006a at 2007-7-28 18:44:30 >

Canvas is an AWT term. If thats what you are drawing on then you should be posting in the AWT forum so people know what you are talking about.

Most of your other questions are about Swing so your custom painting would be done on a class extending JComponent or maybe JPanel. In which case you should be posting in the Swing forum.

We can't give an answer if we don't know what type of application your are building.

camickra at 2007-7-28 18:44:30 >

@prometheuzz

fuckoff

java_2006a at 2007-7-28 18:44:30 >