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Hello, I'm glacier~~To be honest, this article took me a month. All the new features of Java 8 are here. I suggest collecting them first and reading them later.What are the new features of Java 8?Simply put, the new features of Java 8 are as follows:Lambda expressionFunctional interfaceMethod reference and constructor referenceStream APIInterfa ...

catalogue 1, Supplier interface 1. Use Supplier directly 2. Use Supplier to generate objects 3. Take Supplier as the parameter of the method 2, Consumer interface 1. Use the Consumer object directly 2. Consumer as parameter 3. Use Consumer as the parameter 3, Predict interface 1. test() method demonstration 2. Default method and() 3 ...

On the 13th day, learn several knowledge points that are very helpful to programming, which can greatly reduce redundant operations in the programming process 1, lambda expression lambad expression is an expression of the concept of functional programming. It can simplify many codes in programming. 1.1 several basic forms of lambda expres ...

Custom MLP model structure, 50 generations, total parameters 119690, Mnist test data set accuracy rate of 98%. For neural networks, May Be Paper is better than width. The custom MLP structure is as follows: import numpy as np import tensorflow as tf import os import shutil # mapping from matplotlib im ...

Data pipeline Dataset 1.Dataset class related operations 1.1 Dataset class create dataset 1.2 Dataset class data conversion Knowledge tree 1.Dataset class related operations 1.1 Dataset class create dataset tf.data.Dataset Class to create a dataset and instantiate the dataset. The most comm ...

concept Starting from JDK 1.7, Java provides the ForkJoin framework for parallel task execution. Its idea is to divide a large task into several small tasks, and finally summarize the results of each small task to get the results of this large task. As a concurrency framework, it was added to our Java and issued in jdk7 java.util.concurrent And ...

Here, we will introduce and explain the feature data selection methods often used in Feature Engineering, which are divided into three parts: single variable selection, linear model selection and random forest model feature selection.   Trilogy 1: single variable selection For data scientists or m ...

8. Functions 8.1 function creation and call def filterchar(string): import re pattern = r'(hacker)|(Grab bag)|(monitor)|(Trojan)' sub = re.sub(pattern, '@_@', string) print(sub) about = 'I'm a programmer. I like reading books about hackers. I want to study them Trojan. ' filterchar( ...

1, Functional interface 1. Functional interface definition    before learning lambda expressions, let's look at the functional interface: Interface with only one abstract method You can use @ FunctionalInterface annotation to declare and check functional interfaces java.util.function The ...

preface This article briefly summarizes the common methods in Lambda For students unfamiliar with Lambda, please refer to this article for introduction Understanding of Lambda , Lambda is really more comfortable If you are new to Lambda, but are not familiar with Consumer, Supplier, Predicate and ...