How to use string array in for loop

Question

I have the below string declaration and i am using the string in for loop:

String[] values = new String["A","B","C"]
for (int i = 0, length = values.length; i < length; i++)
    {
        getData(values[i], i, length);
    }

Throwing an error "unexpected token: = @" at for loop line.

tim_yates · Accepted Answer · 2019-04-01 20:24:28Z

4

Groovy is different for creating string arrays, you'd do

String[] values = ['A', 'B', 'C']

You could also do what you're trying to do with

def values = ["A","B","C"]
values.eachWithIndex { item, idx -> 
    getData(item, idx, values.size())
}

answered Apr 1, 2019 at 20:24

tim_yates

172k29 gold badges359 silver badges354 bronze badges

Sign up to request clarification or add additional context in comments.

3 Comments

Studentlearner Over a year ago

i tried the String[] values = ['A', 'B', 'C'] declaration but it still throws the same error in the for loop,

tim_yates Over a year ago

Yeah, for loops in groovy don't accept multiple variables as in Java

tim_yates Over a year ago

The eachWithIndex above should do the same as you're trying with the for loop

mle · Accepted Answer · 2019-04-01 21:10:55Z

0

If you want to write valid Java, you have to initialize your array with the values wanted in curly braces and that looks like:

String[] values = new String[]{"A","B","C"};
for (int i = 0, length = values.length; i < length; i++) {
    getData(values[i], i, length);
}

If you want to do that in Groovy, just use:

String[] values  = [ 'A', 'B', 'C' ]
values.eachWithIndex { v, i ->
  getData(v, i, values.size())
}

edited Apr 1, 2019 at 21:10

answered Apr 1, 2019 at 20:42

mle

2,5401 gold badge21 silver badges25 bronze badges

2 Comments

mle Over a year ago

Sorry, just saw the java tag which was still there at the beginning, I've updated my answer and also put the Groovy solution.

mle Over a year ago

Sorry, just saw the java which was once there on your question. I'll updated my answer now also with the Groovy part.

j3485 · Accepted Answer · 2019-04-02 01:13:18Z

-1

In your code example you did not use a semicolon after the initialization of the for loop. for example,

for(var i= 0; i

compiling without the semicolon will give you an error, not initializing the I variable.

edited Apr 2, 2019 at 1:13

answered Apr 1, 2019 at 20:24

j3485

1501 silver badge5 bronze badges

Collectives™ on Stack Overflow

How to use string array in for loop

3 Answers 3

3 Comments

2 Comments

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

3 Answers 3

3 Comments

2 Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Related