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String template = "%s and '%'"; String result = String.format(template, "my string"); System.out.println(result); Expected:
my string and '%' But result is:
java.util.UnknownFormatConversionException: Conversion = ''' Why? How to correctly declared the sequence '%' so that it's ignored by String.format()?
947
The %s operator is put where the string is to be specified. The number of values you want to append to a string should be equivalent to the number specified in parentheses after the % operator at the end of the string value. The following Python code illustrates the way of performing string formatting.
It means when % is encountered, the next character determines how to interpret the argument and insert it into the printed result. %s means interpret as string, %d is for digit, %x is digit in hexadecimal, %f is for float, etc.... It doesn't really 'do' anything, it's just a convention used for formatting text..
%d means number. %0nd means zero-padded number with a length. You build n by subtraction in your example. %s is a string. Your format string ends up being this: "%03d%s", 0, "Apple"
%s in the format string is replaced with the content of language . %s is a format specifier. Similarly, %x is replaced with the hexadecimal value of number in String. format("Number: %x", number) .
% is already used by format specifiers so it requires an additional % to display that character:
String template = "%s and '%%'"; If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
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