Apache Tomcat is a widely used web server. It can be installed and run on numerous operating systems like Windows, Linux, and macOS. This article will tell you how to install tomcat on mac step by step. But before installing it, you should enable root user in macOS following article How To Enable Root User […]
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The root user is not enabled by default in macOS. So when you run some installation program that always needs root permission you should get errors. The error message may confuse you, it sometimes tells you the password is wrong but the real reason is that the root user has never been enabled at all.
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We all know that we can set text on the android.widget.Button. But we can add images to the android.widget.Button also. We can even specify the location of the image relative to the text on the button, such as on top, bottom, left, and right to the text. This article will show you an example of
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This example will tell you how to set the android.widget.TextView text foreground color and background color in source code. For other android UI components, it is similar to change foreground and background color like this.
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This example will tell you how to display Html text in the android.widget.TextView and android.webkit.WebView object. 1. Display Html Data In Android TextView And WebView Example. If you can not watch the above video, you can see it on the youtube URL https://youtu.be/gUisxpEm908. There are three buttons on the screen in this example. When you
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Android AbsoluteLayout is used to layout UI components with absolute x, y-axis coordinate values. For example, if you put a button widget in AbsoluteLayout, you can set the button’s layout_x, and layout_y property value to place the button in a specific location. This example will show you how to use it.
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This example will tell you how to open a popup alert dialog when the user clicks a floating action button, and after the user inputs the user name in the dialog, it will save the user name in the list view on the main screen. If the user name exists, it will popup a message
Android Floating Action Button, Snackbar, List View Example Read More »
This example will show you how to create a popup dialog with user input controls when the user clicks a button in the main activity screen. The popup dialog customizes the android.support.v7.app.AlertDialog class.
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jQuery pseudo class selector is something like CSS class selector, it can help you to get the web element very easily and accurately. jQuery framework provides many pseudo class selectors, we will introduce them one by one by examples.
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This example will show you how to use Node.JS to create a client and server which will use UDP protocol to communicate. First, you need to import the node js dgram module. This module will control all UDP-related issues such as create a UDP client, create a UDP server, and then you can use the client
Node JS UDP Broadcast Example Read More »