20145118 Java programming 1th Week of study summary

20145118 "Java program design" The 1th Week study summary textbook Learning content Summary

Since the winter vacation at home has installed the Java development tools, so the installation process is not mentioned here. This week I started the Java beginner stage, from the Java history, evolution to the basic composition of Java, which encountered some similar concepts, here are listed: Java Se:java One of the three platforms Jvm:java virtual machine Jre:java Execution Environment Jdk:java Development Toolbox Api:application Program Interface Jsr:java formal standard specification file some necessary knowledge points: 1. The container is a Java application that executes on the JVM. The 2.Java compilation process: The Java language-the bit code (compiled by the compiler) of the mediation format-the sequence that the platform can recognize (through the JVM). 3.JVM is the operating system of the Java program, and the JVM executable is the class document. 4. For "One line of instruction", a more professional statement is "a line of description". 5.println () means that the output string is wrapped, and printf () does not wrap.

Problems in teaching materials learning and the solving process

Win8 the initial setup of the system does not show the program extension, through the data, I understand the display method and set the success, follow the steps in the book to create a. Java document and write out the first small code "HelloWorld". And a mechanism that the operating system uses to flag file types when the extension is known.

Problems in code debugging and the resolution process

I followed the steps in the book to debug the Code "HelloWorld", can not be displayed correctly at the beginning, and then by word-to-case only found that the capitalization of the letter mixed lead to errors, corrected after the correct results.

Other (sentiment, thinking, etc., optional)

When you start debugging code, don't take the impression that you're reading, because being unskilled is prone to mistakes. In the beginner stage or to learn from, learning-oriented, lay a good foundation. In addition, Java is a language, it is necessary to learn our mother tongue and English, as well as mastering the basic grammar. Although computer science can still need us to memorize some concepts, but remember not as the original C language, only the theory and light practice, only read code can not be learned java. And the most important point: Write a blog must pay attention to save!!! This blog is to be completed in a hurry before 12, before written well in the computer because no electricity has been scattered in the end of the end of the heart good tired TT

Learning progress Bar

| | Lines of code (new/cumulative) | Blog volume (Add/accumulate) | Learning time (NEW/cumulative) | Important Growth | | -------- | :----------------:|:----------------:|:---------------: |:-----:| | Target | 5000 Rows | 20 articles | 400 hours | | | First week | 80/100 | 2/2 | 8/14

Resources

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

20145118 Java programming 1th Week of study summary