2. The
readLine(String, Object) method of
Console class in Java is used to read a single line of text from the console by providing a formatted prompt.
Syntax:
public String readLine(String fmt,
Object... args)
Parameters: This method accepts two parameters:
- fmt - It represents the format of the string.
- args - It represents the arguments that are referenced by the format specifiers in the string format.
Return value: This method returns the string that contains the line read from the console. It returns null if the stream is ended.
Exceptions:
- IllegalFormatException - This method throws IllegalFormatException if string format contains an illegal syntax or a format specifier is not compatible with the given arguments or insufficient arguments given the format string or other conditions that are illegal.
- IOError - This method throws IOError if an I/O error occurs.
Below programs illustrate readLine(String, Object) method in Console class in IO package:
Program 1:
