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Removing square brackets from ArrayList

How can I remove square brackets when printing an ArrayList or how can I edit the formatting of the elements printing in ArrayLIst? I dont want this output : [Red,Blue,Green]

javaarraylist
5th Dec 2017, 7:48 AM
Usama Zafar
Usama Zafar - avatar
2 Antworten
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https://code.sololearn.com/cbVpwLv794C8/?ref=app
5th Dec 2017, 8:03 AM
Usama Zafar
Usama Zafar - avatar
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Where do I have to write that toString method? in my own class?
5th Dec 2017, 8:06 AM
Usama Zafar
Usama Zafar - avatar

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