Question

Assigning empty string or string with letters results in GroovyCastException.Assigning a string with number values results in a number.What operation is happening here?

    int var_1 = 2;
    println var_1 // 2
    var_1 = ""
    println var_1 // GroovyCastException

    int var_1 = 2;
    println var_1 // 2
    var_1 = "2"
    println var_1 // 50

What operation/s results in 50?

Answer 1

It’s considering “2” as a single character string, and assigning that character’s Unicode value (U+0032 = ‘2’) to the variable. So for example, I suspect if you do this:

var_1 = "A"
println var_1

you’ll see 65 on the console