Building Reactive Apps with RxJava and Java 8


Reactive programming is a programming paradigm geared around propagation of change. In other words, a program is expressed as a reaction to asynchronous event stream. Multiple consumers subscribe to an event stream and whenever there is a new event it is propagated to all the interested parties which can then react to the event. The canonical example of reactive programming is the modern spreadsheet like Microsoft Excel. In spreadsheet, you can set formulas such as “C1=A1*B1” to calculate product of values at cell A1 and B1. Whenever values of either A1 or B1 cell changes, the product will be recalculated and new value will be shown at cell C1. This is something that we can’t do natively in Java using just the core Java SDK. You can read the full blog at http://blog.xebia.in/2015/09/01/day1-building-an-application-from-scratch-using-rxjava-and-java8/

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