cast double to integer in java

Question

How to cast  java.lang.Double to java.lang.Integer?

 

When I tried it, it throws an exception like below

 

"java.lang.ClassCastException: java.lang.Double incompatible with java.lang.Integer"

Answer 1

There’s no direct way to cast Integers to Double.  There’s a difference between double class and double primitive. Primitives start with lowercase characters (e.g. int, double ) and they don’t have methods. 

 

Whereas Double class acts as wrappers around the primitives, so it’s possible to have objects for it. In your case, you can use the method intValue() to get the value as a primitive int.  

 

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