Conversion between long (long) and int (Integer) in Java

First, the long type is converted to int, where the long type is the base type:

Long   A = 10;     
int b = (int) A;   

Second, the long type is converted to int type, where the long type is the packing type:

Long a = ten; int b=a.intvalue ();

C. convert int to long, where int is the base type:

int a = ten; long b = (int) A;

Convert the integer type to long, where the integer is the package type:

int a = ten= A.longvalue ();

Five, there are other methods, such as packing type generally have Parselong parsexxx static method, but generally can only pass string type.

Summary: The transformation here is to pay attention to the eight basic data types of Java and the difference between eight types of packaging data.

Reference:

http://blog.csdn.net/u014039577/article/details/37925611 (the above content is transferred from this article)

Conversion between long (long) and int (Integer) in Java (GO)