Can a string be 0 characters?
It is valid to have a string of zero characters, written just as '' , called the "empty string". The length of the empty string is 0.
What is a string that contains no characters?
A String object that contains no characters is still an object. Such an object is called an empty string.
Can a string have a null character?
All character strings are terminated with a null character. The null character indicates the end of the string. Such strings are called null-terminated strings.
Is An empty string a character?
An empty string is represented as "" . It is a character sequence of zero characters. A null string is represented by null . It can be described as the absence of a string instance.