An easy to understand introduction to TypeScript

This article comprehensively introduces the common knowledge points of TypeScript, which is especially friendly for new beginners! This article will take you step by step to learn 14 knowledge points related to the introduction of TypeScript. See the following figure for a detailed outline: 1, What i ...

Posted on Sun, 07 Jun 2020 03:13:07 -0700 by begeiste

Four Solutions for Josephus Ring (Joseph Ring)

joseph The Joseph Ring (Joseph Problem) is a mathematical application problem: known n individuals (numbered 1, 2, 3...N stands for) sitting around a round table.Start with the person numbered k and count to m; start with the next person and count to m; repeat this rule until all the people around the round table are listed.Usually when solvin ...

Posted on Tue, 21 Apr 2020 10:20:17 -0700 by popcop

Buckle 227-227. Basic calculator II

This problem is similar to the general computational solution, which can be solved by stack, and the particularity of the problem itself can be used for optimization. Original question Implement a basic calculator to evaluate the value of a simple string expression. String expressions contain only fo ...

Posted on Tue, 10 Mar 2020 20:38:36 -0700 by FRSH

[GUI application] Matrix calculator implemented by Matlab

Interface Design Effect Display Body Source %%matrix additiona=str2num(get(handles.edit1,'string'));b=str2num(get(handles.edit2,'string'));[ia ja]=size(a);[ib jb]=size(b);if ia ~= ib | ja ~= jb |(ia ~= ib & ja ~= jb) c='error.Matrix dimensions must agree.'; set(handles.text1,'String ...

Posted on Fri, 06 Mar 2020 18:05:37 -0800 by lalabored

Design mode - simple factory mode

This series of blogs is a collection of articles collected and organized in the process of learning design patterns. For other articles, please refer to Design mode portal This article is a reprint. For the original text, please refer to original text concept Simple factory pattern is a kind of creation pattern, also called Static Factory Met ...

Posted on Mon, 02 Mar 2020 19:07:39 -0800 by axnoran

Big talk design pattern simple factory pattern of reading notes (Java version)

Two characters in the book: small dish and big bird The story starts with a title: please use any object-oriented language such as C + +, Java and C ා to implement a calculator console program. You need to input two numbers and operation symbols to get the result. For the first time, the code is as foll ...

Posted on Fri, 28 Feb 2020 03:13:49 -0800 by kslagdive

Small calculator (clever use of BigInteger)

Problem description Analog program calculator, input the instructions in turn, and the possible instructions include 1. Number: 'NUM X', X is a string containing only uppercase letters and numbers, indicating a current base number 2. Operation instructions: 'ADD', 'SUB', 'MUL', 'DIV' and 'MOD', respecti ...

Posted on Thu, 27 Feb 2020 02:21:34 -0800 by jamescalvin

Using Android studio to design a calculator

Using Android studio to design a calculator Calculator interface Project structure Among them, activity main.xml file is the interface of calculator, shape screen.xml is the figure of calculator display, button1 pressed.xml is the figure of button pressed, button1 normal.xml is the figure of but ...

Posted on Sat, 22 Feb 2020 09:31:03 -0800 by DemonMaestro

Java implementation of mimic win10 calculator

Article Directory 1. Experimental purposes: II. EXPERIMENTAL CONTENTS 3. Experimental Principles 4. Operation Source code: Learn together and make progress together ~ 1. Experimental purposes: 1. Master the programming design method of Java GUI; 2. Master the programming method of exception hand ...

Posted on Tue, 11 Feb 2020 19:36:46 -0800 by hedge

[Spring] Spring's first understanding of AOP

What is AOP? AOP is the abbreviation of Aspect Oriented Programming, which means: face-to-face programming. Spring provides rich support for face-to-face programming, which allows cohesive development by separating application business logic and system level services. Why AOP Application objects onl ...

Posted on Tue, 04 Feb 2020 06:39:33 -0800 by tensionx