type promotion java

double to float Java

3 Comments / Casting Operations, double to other / By S. Nageswara Rao, Corporate Trainer

After knowing primitive data types and Java rules of data Type Casting (Type Conversion), let us cast double to float. By memory-wise, double takes 8 bytes of memory and float take 4 bytes. Both differ in their precision storing. See the data types order to know the brief rules of casting. byte –> short –> …

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double to long Java

Leave a Comment / Casting Operations, double to other / By S. Nageswara Rao, Corporate Trainer

After knowing primitive data types and Java rules of Data Type Casting (Type Conversion), let us cast double to long. By memory-wise, double and long both take 8 bytes of memory. Even then, a double value cannot be assigned to a long (here, rules of casting does not work) as double carries a mantissa (value …

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