20145316 Java programming 1th Week of study summary

20145316 "Java program design" The 1th Week study summary textbook Learning content Summary

First, understand the Java language:

1.Java is an object-oriented programming language that can compose cross-platform applications. Java technology, with its versatility, efficiency, platform portability and security, is widely used in PCs, data centers, game consoles, science supercomputers, mobile phones, and the Internet, while owning the world's largest developer professional community.

The 2.Java consists of four aspects:

The Java programming language, or syntax.

Java file format, which is the suffix of various folders and files.

The Java Virtual machine (JVM), the interpreter that processes the *.class file.

Java Application Interface (Java API).

Second, learn basic Java environment to build

1. Download the JDK from the website and watch the instructional video carefully

2. The environment variables are configured according to the tutorial

3. Check the Java installation and installation version from the command prompt

Problems in teaching materials learning and the solving process

1. Issue: When you confirm the installation, you have a long code after entering Java using the command prompt, and you don't know what it means.

Resolution: After reviewing the data, the corresponding version prompt appears after the change command is Java-version

2. Issue: After installation, there are two JRE folders in the Found folder

Resolution process: Access to information and read the relevant blog content, learn about the JDK and include the JRE, and the JRE functionality and JDK duplication.

Problems in code debugging and the resolution process

Problem: 1. The environment variable is not configured correctly during compiling the class file

2. Inconsistent file name and command name cause compilation errors

WORKAROUND: 1. Reconfigure environment variables

2. Change the file name check code

Other (sentiment, thinking, etc., optional)

Learn to compile after the feeling of coding or a pretty interesting thing can bring a great sense of accomplishment especially see the screen out of HelloWorld, feel very strong, haha ~

Learning progress Bar

| | Lines of code (new/cumulative) | Blog volume (Add/accumulate) | Learning time (NEW/cumulative) | Important Growth | | -------- | :----------------:|:----------------:|:---------------: |:-----:| | Goal

| 5000 Rows | 30 Articles |               400 hours | | | First week | 200 | 2 | 20 | |

Resources

• Java Learning Notes (8th Edition)
• Java Learning Note (8th Edition) Learning Guide

20145316 Java programming 1th Week of study summary