Two ways to get Stream stream

Two ways to get Stream stream Two ways to get Stream stream Demo01GetStream package cn.xiaoge.day21.demo02; /* java.util.stream.Stream<T>Java 1.8 is the most commonly used new stream interface Getting a flow is very simple. There are several common ways: All Collection colle ...

Posted by abolmeer on Sat, 18 Jan 2020 16:59:39 +0100

Distributed ID - snowflake algorithm

background With the increasing business volume, the division of database is becoming more and more detailed, and the concept of sub database and sub table is also gradually implemented. The generation of primary key ID such as auto increase primary key or sequence no longer meets the demand, so the ...

Posted by rallokkcaz on Sat, 18 Jan 2020 10:12:11 +0100

Solution to problem 18 of leetcode (python analysis)

leetcode brush inscription -- > 18 problem solving method (python analysis) Definition of title Solving problems 1. Use dichotomy 2. Optimization by dichotomy 3. Use recursive thinking 4. Continue to optimize the dichotomy Realization Definition of title Given a n array of N integers nums a ...

Posted by freephoneid on Sat, 18 Jan 2020 18:46:15 +0100

Arduino Experiment 2: LED basic application experiment

Catalog 1, Advertising water lamp experiment 1. Experimental equipment 2. Experimental wiring 3. Experiment principle 4. Program code 5. Experimental results 2, Traffic light design experiment 1. Experimental equipment 2. Experimental wiring 3. Experiment principle 4. Program code 5. Experimental ...

Posted by 2gd-2be-2rue on Sat, 18 Jan 2020 12:49:36 +0100

Mybatis source learning (25)-StatementHandler parsing

I. Introduction The    StatementHandler is one of the most core interfaces of Mybatis. He has completed the work related to the interaction between Mybatis and database (the interaction between Mybatis and JDBC on Statement). StatementHandler is mainly used for: Create Statement object Bind ...

Posted by robsgaming on Sat, 18 Jan 2020 07:07:33 +0100