Picture.java file download

It asked me if I wanted to save, open, or save then open. I clicked open it brought me back to the same page. Why did this download not download as a java. Please help. This is my second time hopefully you can help get it fixed.

This thread is locked. You can follow the question or vote as helpful, but you cannot reply to this thread. I have the same question Report abuse. Details required :. Cancel Submit. Previous Next. I would like to help you. Let's try with the save option, please. Let me know, please. How satisfied are you with this reply? Thanks for your feedback, it helps us improve the site. To lower the number of lines of code we can use the Files class available from Java 7. The Files class contains methods that read all the bytes at once and then copies it into another file.

Here is how you can use it:. Java NIO is an alternative package to handle networking and input-output operations in Java. The main advantage that the Java NIO package offers is that it's non-blocking, and has channeling and buffering capabilities. When we use the Java IO library we work with streams that read data byte by byte. However, the Java NIO package uses channels and buffers. The buffering and channeling capabilities allow the system to copy contents from a URL directly into the intended file without needing to save the bytes in application memory, which would be an intermediary step.

The ability to work with channels boosts performance. The downloaded contents will be transferred to a file on the local system via the corresponding file channel.

After defining the file channel we will use the transferFrom method to copy the contents read from the readChannel object to the file destination using the writeChannel object. The transferFrom and transferTo methods are much more efficient than working with streams using a buffer.

The transfer methods enable us to directly copy the contents of the file system cache to the file on the system. Thus direct channeling restricts the number of context switches required and enhances the overall code performance. Now, in the following sections, we will be looking at ways to download files from a URL using third-party libraries instead of core Java functionality components.

Now you may be thinking why would we use this when Java has its own set of libraries to handle IO operations.

However, Apache Commons IO overcomes the problem of code rewriting and helps avoid writing boilerplate code. Greedy Algorithm. Recursion Algorithm. Searching Algorithm. Searching Pattern. Sorting Algorithm. Web Dev. Programming Language. C Programming. Version Control. Unix Shell Programming. Mocha Chai. JavaScript Code. Design Patterns. Apache ActiveMQ. Greek Letters. HTML Entities.

Math Symbols. Roman Numerals. Bootstrap Editor. The result is a width -by- height matrix of pixels, where the color of a pixel is represented using 6 hex digits to encode the red, green, and blue components. The filetype extension must be either. Unit tests this Picture data type. Reads a picture specified by the command-line argument, and shows it in a window on the screen. Picture int width, int height Creates a width -by- height picture, with width columns and height rows, where each pixel is black.