Java横向、纵向合并图片

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

public class TestPic {
    public static void main(String[] args) {
        xPic();
    }

    public static void xPic(){//横向处理图片
        try {
            /* 1 读取第一张图片*/ 
            File fileOne = new File("E:\\1.png");
            BufferedImage imageFirst = ImageIO.read(fileOne);
            int width = imageFirst.getWidth();// 图片宽度
            int height = imageFirst.getHeight();// 图片高度
            int[] imageArrayFirst = new int[width * height];// 从图片中读取RGB
            imageArrayFirst = imageFirst.getRGB(0, 0, width, height, imageArrayFirst, 0, width);

            /* 1 对第二张图片做相同的处理 */
            File fileTwo = new File("E:\\2.png");
            BufferedImage imageSecond = ImageIO.read(fileTwo);
            int[] imageArraySecond = new int[width * height];
            imageArraySecond = imageSecond.getRGB(0, 0, width, height, imageArraySecond, 0, width);
            
            // 生成新图片 
            BufferedImage imageResult = new BufferedImage(width * 2 , height,BufferedImage.TYPE_INT_RGB);
            imageResult.setRGB(0, 0, width, height, imageArrayFirst, 0, width);// 设置左半部分的RGB
            imageResult.setRGB(width, 0, width, height, imageArraySecond, 0, width);// 设置右半部分的RGB
            File outFile = new File("D:\\out.jpg");
            ImageIO.write(imageResult, "jpg", outFile);// 写图片
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
    
    public static void yPic(){//纵向处理图片
        try {
            /* 1 读取第一张图片*/ 
            File fileOne = new File("D:\\1.GIF");
            BufferedImage imageFirst = ImageIO.read(fileOne);
            int width = imageFirst.getWidth();// 图片宽度
            int height = imageFirst.getHeight();// 图片高度
            int[] imageArrayFirst = new int[width * height];// 从图片中读取RGB
            imageArrayFirst = imageFirst.getRGB(0, 0, width, height, imageArrayFirst, 0, width);

            /* 1 对第二张图片做相同的处理 */
            File fileTwo = new File("D:\\1.GIF");
            BufferedImage imageSecond = ImageIO.read(fileTwo);
            int[] imageArraySecond = new int[width * height];
            imageArraySecond = imageSecond.getRGB(0, 0, width, height, imageArraySecond, 0, width);
            
            // 生成新图片 
            BufferedImage imageResult = new BufferedImage(width, height * 2,BufferedImage.TYPE_INT_RGB);
            imageResult.setRGB(0, 0, width, height, imageArrayFirst, 0, width);// 设置左半部分的RGB
            imageResult.setRGB(0, height, width, height, imageArraySecond, 0, width);// 设置右半部分的RGB
            File outFile = new File("D:\\out.jpg");
            ImageIO.write(imageResult, "jpg", outFile);// 写图片
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}