如以下代码,可输出的图片全黑,不知道哪里出错了,望达人指教啊。import javax.imageio.ImageIO;
import java.awt.image.*;
import java.awt.*;
import java.io.*;public class test
{
public static void main(String args[])
{
BufferedImage coordImage = new BufferedImage(50,50,BufferedImage.TYPE_INT_RGB);
Graphics2D g2 = coordImage.createGraphics();
g2.setBackground(Color.yellow);
g2.setColor(Color.RED);
g2.drawString("TEST",0,0);
g2.dispose();
try{
ImageIO.write(coordImage,"jpg",new File("E:\\Download\\a.jpg"));
}catch(Exception e){}
}
}
import java.awt.image.*;
import java.awt.*;
import java.io.*;public class test
{
public static void main(String args[])
{
BufferedImage coordImage = new BufferedImage(50,50,BufferedImage.TYPE_INT_RGB);
Graphics2D g2 = coordImage.createGraphics();
g2.setBackground(Color.yellow);
g2.setColor(Color.RED);
g2.drawString("TEST",0,0);
g2.dispose();
try{
ImageIO.write(coordImage,"jpg",new File("E:\\Download\\a.jpg"));
}catch(Exception e){}
}
}
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import java.io.File;
import java.io.IOException;
import java.awt.Color;
import java.awt.Graphics2D;
import java.awt.Rectangle;
import java.awt.image.BufferedImage;
import javax.imageio.ImageIO;public class Test {
public static void main(String[] args){
BufferedImage coordImage = new BufferedImage(50,50,BufferedImage.TYPE_INT_RGB);
Graphics2D g2 = (Graphics2D)coordImage.getGraphics();
g2.setColor(Color.YELLOW);
g2.fill(new Rectangle(0,0,50,50));
g2.setColor(Color.RED);
g2.drawString("TEST",10,10);
g2.dispose();
try{
ImageIO.write(coordImage,"jpg",new File("test.jpg"));
}catch(Exception e){}
}
}