The Long data type in Java is converted to an int type _java

converting from an int type to a long type is an upward conversion and can be directly implicit, but converting from a long type to an int type is a downward conversion, and a data overflow condition may occur:

The main following conversion methods for reference:

Coercion type conversion

Long ll = 300000; 

Second, call the Intvalue () method

Long ll = 300000; 

First, convert long to string strings, and then change to integer

Long ll = 300000; 

These three methods are relatively simple and straightforward.