We have to look at IDEA features - continuous summary

1. CTRL + ALT + P-coded parameters are extracted to the method parameters

2. CTRL + ALT + M extraction method of a new code block.

3. The value of each variable is automatically displayed Debug mode, can also select one of the arithmetic expressions (ALT + F8)

4. File revision history

5. ALT + ENTER language can be implanted, such as JSON-formatted data written in the above, automatic double escape.

See FIG. 6. The structure of a class