I am trying to write a value to a cell with Google Sheet API with Java. For reading I used guide from Java Quickstart which worked fine for me.
For writing to Google
I was having the same issue. I resolved the problem that was in the scope. I just changed
SheetsScopes.SPREADSHEETS.READONLY
To
SheetsScopes.SPREADSHEETS
And it works very well.
Apparently there were several issues together:
Now it works! Thank you guys for help
Try replacing "Sheet1!A4:H" with A4:H
The Java API must be used in an interactive way, if you're running this on a server that can't pop up a web-browser (which will let you approve an OAuth dialog), then the authentication flow doesn't get proper credentials and won't work.
While running this, do you see a browser pop up to approve an OAuth dialog? If not, you're likely running in a headless session and will need some other means to get the user's credentials.