Such casts are not necessarily a problem but may result in difficult to trace bugs if the loss of precision is unexpected.
Example:
int a = 420;
byte b = (byte) a;
Use the Ignore casts from int to char option to ignore casts from int
to char
.
This type of cast is often used when implementing I/O operations because the read()
method of the
java.io.Reader
class returns an int
.
Use the Ignore casts from int 128-255 to byte option to ignore casts of constant values (128-255) from int
to
byte
.
Such values will overflow to negative numbers that still fit inside a byte.