Accessing s3 using credentials stored in laptop in .aws folder through Java

I am trying to access to s3 using Java. the credentials are stored in my laptop, but when i specify the credentials in code, its showing that the key doesn't exist.

Error:The AWS Access Key Id you provided does not exist in our records. (Service: S3, Status Code: 403, Request ID: ,,,,,,) Code written: Region region = Region.US_EAST_1;

String bucketname="x"; String keyname="y"; String Accesskey="z"; String Secretkey="t";

AwsBasicCredentials credentials=AwsBasicCredentials.create(Accesskey,Secretkey); AwsCredentialsProvider provider = StaticCredentialsProvider.create(credentials);

S3Client client = S3Client.builder().region(region) .credentialsProvider(provider) .build();

GetObjectRequest objectRequest = GetObjectRequest.builder() .bucket(bucketname) .key(keyname) .build();