[JAVA rookie] ask questions about the order of calculation

problems are shown in figure

clipboard.png

The expression on the way of

, shouldn"t it be like this

y+=((z--)/(PPx))

I remember
Zmuri-if the symbol is followed by the symbol, it should be self-decreasing after the calculation. PPx increases first and then participates in the operation
so shouldn"t it be 20 percent 1.5? why 21?

Apr.01,2021

because int 3 answer 2 = 1.

MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
MySQL Error : Disk full (/tmp/#sql-temptable-64f5-1b39a33-2c1b8.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1b39a33-2c1b8.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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