Question: Given that String [ ] str has been initialized, to get a copy of s t r [ 0 ] with all the characters converted

Given that String[] str has been initialized, to get a copy of str[0] with all the characters converted to uppercase, you would use the statement.
str.uppercase();
st '0].upperCase();
r.toUpperCase();
str[0].toUpperCase();
Given that String[] str has been initialized, to get a copy

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