JAVA扩展ASCII表使用 [英] JAVA extended ASCII table usage

问题描述

在我的应用程序中，我需要从图像上显示的扩展ASCII表获取字符。但是当我把十进制值转换为char时，我得到不同的字符。这些字符在JAVA中的真正价值是什么。

  private void generateAsciiMatrix（）
 {
 // 32  -  255是ascii表中的可见字符
 for（int i = 32; i <256; i ++）
 {
 this.generateAsciiMatrix一世）; 
} 
} 
 
 private void generateAsciiMatrix（char letter）
 {
 EBufferedImage character = new EBufferedImage（
 ImageClass.charToImage宽度，高度））; 
 //...some代码
} 
 
 public static BufferedImage charToImage（char c，int width，int height）
 {
 BufferedImage off_Image = new BufferedImage（width，height，
 BufferedImage.TYPE_BYTE_GRAY）; 
 
 Graphics2D g2 = off_Image.createGraphics（）; 
 g2.setColor（Color.black）; 
 g2.setBackground（Color.WHITE）; 
 g2.clearRect（0，0，width，height）; 
 g2.setFont（new Font（Monospaced，Font.PLAIN，12））; 
 g2.drawString（Character.toString（c），0，height）; 
 saveImage（off_Image，code+（int）c）; 
 return off_Image;感谢您的帮助，对不起我的可怜的英语： - ）      / p> 
 
 
 > 
解决方案
我的解决方案这个问题是我手动创建一个字符数组与我需要的字符
 
in my app I need to get character from extended ASCII table that is shown on the image. But when I cast decimal values into char, I get different characters. What is the real value of these characters in JAVA. I dont write the character on console or in a file, just into the image.
private void generateAsciiMatrix()
{
    //32 - 255 are visible characters in ascii table
    for(int i = 32; i < 256; i++)
    {
        this.generateAsciiMatrix((char)i);
    }
}

private void generateAsciiMatrix(char letter)
{
    EBufferedImage character = new EBufferedImage(
            ImageClass.charToImage(letter, width, height));
    //...some code
}

public static BufferedImage charToImage(char c, int width, int height)
{
    BufferedImage off_Image = new BufferedImage(width, height,
                BufferedImage.TYPE_BYTE_GRAY);

    Graphics2D g2 = off_Image.createGraphics();
    g2.setColor(Color.black);
    g2.setBackground(Color.WHITE);  
    g2.clearRect(0, 0, width, height);  
    g2.setFont(new Font("Monospaced", Font.PLAIN, 12)); 
    g2.drawString(Character.toString(c), 0, height);
    saveImage(off_Image, "code" + (int)c);
    return off_Image;
}
Thank you for your help, and sorry for my poor English :-)

解决方案
My solution for this problem is that I manualy created a char array with those characters I needed

                        
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