Experiment Ⅰ ——getting familiar with JDK (Linux + Eclipse)

Content

1.Compile and run easy Java programs using JDK；
2.Edit, compile, run and debug in Eclipse.

Steps

Java in the terminal：

Running in the Idea：

Debug：

View variables at breakpoint:

Step into:

Step over:

Set breakpoint:

Problem & Solution

The demand is easy, while I had no idea about the way of encapsulation for the lack of experience. Our aim is to calculate all the prime from 1 to N, so it should be written as a method. So I new a class called 'Prime'. When I initialise the variable in the class, it turned out error. The assistant professor told me that all the operations should be written in Constructor or Method. Then I put the initialization in the Constructor. Problem solved!

step	time	percentage
demand analyse	0	0%
design	20min	30.76%
code	20min	30.76%
test	20min	30.76%
summarize	5min	7.69%

PS : code

巴特西

20145109 《Java实验报告1》