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.

score 11 · Accepted Answer · answered Aug 20 '11 at 23:42

11

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.

answered Aug 20 '11 at 23:42

Benjamin Muschko

32,442
9
61
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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? – Freewind Aug 21 '11 at 04:14
1

You could wrap it in a [function](http://groovy.codehaus.org/Groovy+Shell#GroovyShell-Functions) and return `s` whenever you need it. That would be another option. – Benjamin Muschko Aug 21 '11 at 12:20

score 1 · Answer 2 · answered Dec 21 '15 at 12:30

1

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

answered Dec 21 '15 at 12:30

Aizzat Suhardi

753
11
19

1

TY. This is what I expected as a Python user. now I execute always `groovysh --define=interpreterMode` – jgomo3 May 07 '17 at 19:57

score 0 · Answer 3 · answered Jun 12 '13 at 08:57

0

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()

answered Jun 12 '13 at 08:57

bollin

185
11

MissingPropertyException in groovysh

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