e133. converting between a url and a uri.txt

这里面包含了一百多个JAVA源文件

URI uri = null;
    URL url = null;
    
    // Create a URI
    try {
        uri = new URI("file://D:/almanac1.4/Ex1.java");
    } catch (URISyntaxException e) {
    }
    
    // Convert an absolute URI to a URL
    try {
        url = uri.toURL();
    } catch (IllegalArgumentException e) {
        // URI was not absolute
    } catch (MalformedURLException e) {
    }
    
    // Convert a URL to a URI
    try {
        uri = new URI(url.toString());
    } catch (URISyntaxException e) {
    }