e1071. copying one file to another.txt

来自「这里面包含了一百多个JAVA源文件」· 文本 代码 · 共 18 行

This example uses file streams to copy the contents of one file to another file. See e172 Copying One File to Another for an example that uses file channels. 
    // Copies src file to dst file.
    // If the dst file does not exist, it is created
    void copy(File src, File dst) throws IOException {
        InputStream in = new FileInputStream(src);
        OutputStream out = new FileOutputStream(dst);
    
        // Transfer bytes from in to out
        byte[] buf = new byte[1024];
        int len;
        while ((len = in.read(buf)) > 0) {
            out.write(buf, 0, len);
        }
        in.close();
        out.close();
    }