MissingPropertyException in groovysh

Question

I run groovysh, and type the following code:

groovy:000> String s = "Hello"
===> Hello
groovy:000> s
ERROR groovy.lang.MissingPropertyException:
No such property: s for class: groovysh_evaluate
        at groovysh_evaluate.run (groovysh_evaluate:2)
        ...
groovy:000>

How to access the s here?

(If I change String s = "Hello" to s = "Hello", I can access it. But I want to know how to access it in the example)

---

UPDATE

I want to use String s = "Hello" to define a variable because I want to declare the type of it. For example, if I write:

Date date = []

The date will be a java.util.Date. But if I write:

date = []

It will be a ArrayList.

Hern

Answer 1

The expression s = "Hello" sets a shell variable, the expression String s = "Hello" sets a local variable which does not get saved to the shell's environment. Please see the Groovy Shell documentation for more information. I am not quite sure what you are trying to achieve but you might rather want to go with Groovy Console to evaluate Groovy scripts.

Loanloanda

thank you, groovy console can let me do it. You mean, there is no way to get the s from String s = ... in groovysh, right? – Hern

You could wrap it in a function and return s whenever you need it. That would be another option. – Loanloanda

Answer 2

simply set it to interpreterMode

groovy:000> :set interpreterMode

and you can just straightly use

Date date = []

ref: http://www.groovy-lang.org/groovysh.html#GroovyShell-InterpreterMode

Nicolenicolea

TY. This is what I expected as a Python user. now I execute always groovysh --define=interpreterMode – Brandebrandea

Answer 3

You can write

date = [] as Date

to make sure date really has type Date. I had a similar problem and used

bin = [1, 26, 42 ,7] as byte[]
bin.encodeBase64()

Osmen