New Feature of JDK 1.8--Analysis of Lambda Implementation Principle

Analysis of Lambda Implementation Principle One guess Sample of 1 Lambda expression 2.1 guess 1 2.2 guess 2 2.3 guess 3 Two validation 1. Obtaining bytecode files by decompiling tools 2 Verify the correctness of the above transformation How is the static lambda lambda $0 function called? In order to support functional ...

Posted by raker7 on Sat, 11 May 2019 06:07:11 -0700

SignalR Practice on Android

balderdash Because our backend is.net, we need to use SignalR for push.Because there is not much information on the Internet, we also took a lot of detours.Now take a note and hope you can help more people. First, confirm that the background is asp.net still asp.net core, the two ignalRs are different, and we use different lib ...

Posted by vino4all on Fri, 10 May 2019 21:31:57 -0700

Jedi survival chicken devil strongest strategy! Attached 170 lines of Python code!

My favorite sister was killed when she played chicken for three minutes, but she could not run away and died of blood loss in the middle of the road. She was sniped by bullets in an unknown direction while standing in the grass. What else can I do - save her with what I've learned all my life, of course! __________ Where is t ...

Posted by stockton on Fri, 10 May 2019 13:33:30 -0700

My way to self-study Python (Phase 2 Day9)

Today's lessons are as follows: 1. In C/C++, the result of the'/ 'arithmetic operator is usually determined by the data on both sides of the operation, such as: 6/3 = 2; 6,3 are integers, so the result is integer 2; 6.0 / 3.0 = 2.0; 6.0, 3.0 is a floating point number, so the result is also floating point 2.0, which is precisely Python 2.2 as l ...

Posted by tunari on Thu, 09 May 2019 12:44:39 -0700

Python Data Analysis--Pandas Knowledge Points (II)

This paper mainly summarizes the functions and methods used in learning pandas, and records them here to prevent forgetting. Python Data Analysis--Pandas Knowledge Points (1) The following will be a summary on the basis of knowledge point one. 13. Simple calculation Create a new data table df 1 import pandas as pd 2 3 df = pd.DataFrame({"regi ...

Posted by KC8Alen on Thu, 09 May 2019 03:57:38 -0700

Android RxLife A Lightweight RxJava Lifecycle Management Library

brief introduction RxLife is a lightweight RxJava Lifecycle Management Library with minimal code invasiveness, ready-to-use, no preparation required, and support disconnecting pipelines in any life cycle approach of Activity/Fragment. principle RxLife feObtain the life cycle changes of Activity/Fragment through Lifecycle under Jetpack and injec ...

Posted by kyin on Wed, 08 May 2019 07:48:38 -0700

VB.NET Learning Notes: Multithread Programming

In " Multi-threaded and delegated implementation of waiting form (loading is loading interface), run timeout can cancel the operation > Multithread programming is used in this article, so take a note here. We continue to use it.< Delegation: Synchronization, Asynchronization, Lambda Expressions and Built-in Delegation ...

Posted by dejvos on Wed, 08 May 2019 05:05:40 -0700

Java 8 - New features && Financial reconciliation applications

Background: 1. In financial industry, there is usually reconciliation. 2. The essence of reconciliation is to compare the transaction records of both parties. 3. Both sides have transaction records. Comparing [status & amount], we will only focus on Kazakhstan. 3.1. The same amount of status is recorded as success and vic ...

Posted by bandit8 on Tue, 07 May 2019 02:55:38 -0700

Understanding auto type inference

Last post The template type inference is described in this paper. We know that the principle of auto is based on the template type inference. Review the template type inference: template <typename T> void f(ParamType param); Use the following function calls: f(expr); We see that template type inference involves template, function f and ...

Posted by willythemax on Sun, 05 May 2019 15:16:38 -0700

Overview of new features - enumerations, annotations, Lambda expressions, method references

1. Enumeration (actually multiple cases) Enumerations in java are defined using enum, which is not a new structure. Enumerations are defined using enum The Enum enumeration class is actually inherited by default.So the enum structure defined by enum is actually a multiple-instance class. Three commonly used methods for 1.1Enum e ...

Posted by frankstr on Sun, 05 May 2019 10:40:37 -0700