The format(String, Object) method of PrintStream Class in Java is used to print a formatted string in the stream. The string is formatted using specified format and arguments passed as the parameter.
public PrintStream format(String format, Object…args)
Parameters: This method accepts two mandatory parameter:
- format which is the format according to which the String is to be formatted.
- args which is the number of arguments for the formatted string. It can be optional, i.e. no arguments or any number of arguments according to the format.
Return Value: This method returns this PrintStream instance.
Exception: This method throws following exceptions:
- NullPointerException This is thrown if the format is null.
- IllegalFormatException This is thrown if the format specified is illegal or there are insufficient arguments.
Below methods illustrates the working of format(String, Object) method:
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