银行转账虚拟生成器app，银行卡转账截图制作软件，java实现截图生成工具【仅供装逼娱乐用途】

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如何使用Java生成自定义图片
图像水印添加技术
合法的电子凭证生成方案

import javax.imageio.ImageIO;
import java.awt.*;
import java.awt.image.BufferedImage;
import java.io.File;

public class ImageGenerator {
public static void createDemoImage(String outputPath) throws Exception {
int width = 800;
int height = 600;
BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);

    Graphics2D g = image.createGraphics();
    g.setColor(Color.WHITE);
    g.fillRect(0, 0, width, height);

    g.setColor(Color.BLACK);
    g.setFont(new Font("Arial", Font.BOLD, 24));
    g.drawString("教学用示例图片", 50, 50);
    g.drawString("生成时间: " + new java.util.Date(), 50, 100);

    g.dispose();
    ImageIO.write(image, "png", new File(outputPath));
}

        

          
        
        
        

          

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}

class Main {
public static void main(String[] args) {
try {
ImageGenerator.createDemoImage("demo.png");
System.out.println("已生成教学示例图片");
} catch (Exception e) {
System.err.println("图片生成失败: " + e.getMessage());
}
}
}

import javax.swing.;
import java.awt.;
import java.awt.image.BufferedImage;

public class ImageEditor {
private BufferedImage currentImage;

public ImageEditor(int width, int height) {
    this.currentImage = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
    initWhiteBackground();
}

private void initWhiteBackground() {
    Graphics2D g = currentImage.createGraphics();
    g.setColor(Color.WHITE);
    g.fillRect(0, 0, currentImage.getWidth(), currentImage.getHeight());
    g.dispose();
}

public void addText(String text, int x, int y, Font font, Color color) {
    Graphics2D g = currentImage.createGraphics();
    g.setFont(font);
    g.setColor(color);
    g.drawString(text, x, y);
    g.dispose();
}

public void saveAsPNG(String filePath) throws Exception {
    ImageIO.write(currentImage, "png", new File(filePath));
}

        

          
        
        
        

          

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}

public class TextLayer {
private String content;
private Font font;
private Color color;
private Point position;

public TextLayer(String content, Font font, Color color, Point position) {
    this.content = content;
    this.font = font;
    this.color = color;
    this.position = position;
}

public void applyToImage(BufferedImage image) {
    Graphics2D g = image.createGraphics();
    g.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING, 
                      RenderingHints.VALUE_TEXT_ANTIALIAS_ON);
    g.setFont(font);
    g.setColor(color);
    g.drawString(content, position.x, position.y);
    g.dispose();
}

        

          
        
        
        

          

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}

class MainApp {
public static void main(String[] args) {
try {
ImageEditor editor = new ImageEditor(800, 600);
Font titleFont = new Font("微软雅黑", Font.BOLD, 24);
editor.addText("教学示例图片", 50, 50, titleFont, Color.BLACK);

        Font warningFont = new Font("宋体", Font.ITALIC, 16);
        editor.addText("本图片仅用于Java图形编程教学", 50, 100, warningFont, Color.RED);

        editor.saveAsPNG("output.png");
        System.out.println("图片已生成");
    } catch (Exception e) {
        e.printStackTrace();
    }
}

        

          
        
        
        

          

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}

Java 2D图形编程官方文档
OpenCV图像处理库
数字水印技术实现