The third practice of software engineering jobs

The third practice of software engineering jobs

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1.PSP table

PSP2.1	Personal Software Process Stages	Estimated time consuming (minutes)	The actual time-consuming (minutes)
Planning	plan	30	10
Estimate	Estimate how much time this task requires	240	360
Development	Develop	180	120
Analysis	Needs analysis (including learning new technologies)	60	80
Design Spec	Generate design documents	60	30
Design Review	Design Review	60	30
Coding Standard	Code specifications (development of appropriate norms for the current development)	10	10
Design	Specific design	10	10
Coding	Specific coding	120	90
Code Review	Code Review	60	10
Test	Test (self-test, modify the code, submit modifications)	60	120
Reporting	report	30	60
test repor	testing report	30	30
Size Measurement	Computing workload	30	20
Postmortem & Process Improvement Plan	Later summarized, and process improvement plan	30	60

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2. The calculation module #### Interface Design

#### 3. Performance Improvements

4. Test Unit

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5. Exception Handling

Processing file open failed and illegal grids exception:

    try
    {
        if (m < 3 || m>9) {
            throw - 1;
        }
        if (fin.is_open()==false) {
            throw - 2;
        }
        if (fout.is_open() == false) {
            throw - 3;
        }
            
    }
    catch (int e)
    {
        if (e == -2) {
            cout << "Not found Infile!";
            return 0;
        }
        else if (e == -3)
        {
            cout << "Can not open Outfile!";
            return 0;
        }
        else
        {
            cout << "Please enter right number 'm'!";
            return 0;
        }
    }

1. If the file name entered incorrectly, an exception is thrown "Not found Infile!"
2. If you can not open the file output folder, then throw "Can not open Outfile!"
3. If the m input out of range, then throw "Please enter right number 'm'!"