Is type casting possible between wrapper classes in Java? -

is type casting possible between wrapper classes in java?

the code here tried:

public class test {     public static void main(string[] args)     {       double d = 100.04;         long l = (long) d.doublevalue(); //explicit type casting required         int = (int) l;                 //explicit type casting required         system.out.println("double value " + d);       system.out.println("long value " + l);       system.out.println("int value " + i);     } } 

why isn't long casted int in program?

 long l = (long)d.doublevalue();  //explicit type casting required    int = (int)l;     //not valid, because here casting wrapper long  

in above line, casting of l not possible int because wrapper classes autoboxing , unboxing. refer: https://docs.oracle.com/javase/tutorial/java/data/autoboxing.html. wrapper class casted corresponding primitive type.

 long l = (long)d.doublevalue();  //explicit type casting required    int = (int)l;     //valid, because here casting primitive    primitive 

in above lines casting of l possible int because long primitive type , int primitive type. here primitive narrowing casting take place casting long int may result in loss of precision.