Complete The Pattern #6 - Odd Ladder Task: You have to write a function pattern which creates the following pattern (see examples) up to the desired number of rows. If the Argument is 0 or a Negative Integer then it should return "" i.e. empty s…

Complete The Pattern #1 Task: You have to write a function pattern which creates the following pattern upto n number of rows. If the Argument is 0 or a Negative Integer then it should return "" Pattern: 1 22 333 .... ..... nnnnnn Note: There are…

Complete The Pattern #2 Description: Task: You have to write a function pattern which creates the following pattern upto n number of rows. If the Argument is 0 or a Negative Integer then it should return "" i.e. empty string. Pattern: (n)(n-1)(n…

默认是在一个fragment中实现RecyclerView. private inner class CrimeAdapter() : ListAdapter<Crime, CrimeHolder>(mDiffCallback) { override fun onCreateViewHolder( parent: ViewGroup, viewType: Int ): CrimeHolder {//这个parent就是RecyclerView;在这个方法中绑定子项视图 val view = l…

from: Working with Scala's XML Support 虽然这个guy炒鸡罗嗦,但是还是讲到我要的那句话:  Because Scala doesn't support XML patterns with attributes. scala的模式匹配模式根本就不支持 属性 还是老老实实用XPath吧 XML is probably one of Scala's most controversial language features (right behind unrest…

http://changelog.ca/log/2013/08/09/software_engineer_title_ladder Within the software engineering profession, there is an ordered set of titles that are in usage for software engineers. I have seen these titles for software engineers at a number of c…

Use an append-only store to record the full series of events that describe actions taken on data in a domain, rather than storing just the current state, so that the store can be used to materialize the domain objects. This pattern can simplify tasks…

The basic functional cornerstones of Scala: immutable data types, passing of functions as parameters and pattern matching. 1. Basic Pattern Matching In Scala, your cases can include types, wildcards, sequences, regular expressions, and so forth. scal…

Consolidate multiple tasks or operations into a single computational unit. This pattern can increase compute resource utilization, and reduce the costs and management overhead associated with performing compute processing in cloud-hosted applications…

Enable multiple concurrent consumers to process messages received on the same messaging channel. This pattern enables a system to process multiple messages concurrently to optimize throughput, to improve scalability and availability, and to balance t…