In Kotlin, everything is an object. There are no primitive variables.

The following are the important numeric types:

• Double: 64 bit
• Float: 32 bit
• Long: 64 bit
• Int: 32 bit
• Short: 16 bit
• Byte: 8 bit

Unlike Java, Kotlin does not treat characters as a numeric type. Any numeric operation on a character will result in a compilation error. Consider the following code:

var char = 'c'

//Operator '==' cannot be applied to 'Char' and 'Int'
//if(char==1) print (char);