Idea debug according to conditional breakpoints

background

Programmers should often use idea Breakpoint debugging , Then when debugging , I have a need is , There is a loop in the code , Then when you cycle to a certain data , I just want to follow step by step , I've always known this function , But I haven't really used it , I finally used it once this week , I can't help but sigh that it's so easy to use , So write a blog to record .

Breakpoint debugging

Common methods

First we need to make sure that , The way to start the program is Debug Pattern , Pictured

perhaps

Then interrupt where you want to stop

Next, just execute the test method , Just let the code call this class . Pictured ：

Common functions

Step Into/Step Over/Step Out

• Step into： Step by step , If you encounter a subfunction, enter and continue to step in .
• Step over： In a single step , When you encounter a subfunction in a function, you will not step into the subfunction , Instead, the entire execution of the subfunction is completed before it stops , That is to say, take the whole subfunction as a step .
• Step out： When stepping into a subfunction , use step out You can execute the rest of the subfunction , And return to the previous function .

Conditional pause

Where breakpoints are set , Right click the breakpoint , You can set conditions

After setting breakpoints according to conditions , The breakpoint will become a red dot with a question mark , And then go ahead and do it , When there are qualified data , Will stop . Very convenient