Experiment with familiarity with a Java development environment

Lab report Cover

Experiment content and steps familiar with Java development environment _1

1. Create a catalogue of "self-learning number EXP1"
2. Set up Src,bin directory under "Exp1"
3.javac, Java implementation in the "self-study number EXP1" directory
4. Submit a full screen running Java under command line in Linux or Windows or MacOS, and run the results with your own ID and other information

• mkdir 20165306exp1Create directories, then ' mkdir 20165314/src , mkdir 20165314/bin re src -establish, bin catalog.
  

• javac -d bin src/Hello.javarun with and java -cp ./bin Hello command compilation.
  

  Familiarity with the Java development environment _2

  提交Linux或Windows或masOS环境中IDEA中调试设置条件断点的全屏，打上自己学号的水印。

  Set breakpoints and step-up related knowledge points:
• Left-click on the line number where you want to set the breakpoint, and then click Undo Setting
• Run->debug Starting the Debug program
• Right-click the red circle that represents the breakpoint, and the pop-up breakpoint property box to set the condition
• Run Result: 11 4950
  
• Click the line number to set a breakpoint, such as Line 5th, to view the value of the variable, such as I=3,j=6,sum=6
  

• Right-click the red circle to set the condition i==10
  

  Familiar with the Java Development Environment _3 the topic is: "The implementation of the permutation number p (n,m) function, m,n from the command line input, and test (normal situation, abnormal situation, boundary conditions).
  P (n,m) =n!/(N-M)!
  Write the program and set the parameter value: 5 4
• Normal operation results
  
• Set-1-1, abnormal condition run result
  
• Set 4 5, abnormal condition run result
  

• Boundary value: Set 0 0, abnormal condition run result
  
  | step | time | percentage |
  | ------: | :-------: | :--------- |
  | Demand analysis |10 min |5%|
  | design |30 min |16%|
  | code implementation |75 min |40%|
  | Test |30 min |16%|
  | Analysis Summary |40 min |22%|

  Experiment Experience

  The test of my subject is the last lesson of the recursive knowledge, at first I will not use idea to set parameters, and then others taught me, which reflects the advantages of knot to learn

Experiment with familiarity with a Java development environment