the specification at html provides you with the in-depth detailsbut here' an overview of what the various entries meanfilldefines the fill character used when displaying data that is too small to fit within the assigned space alignspecifies the alignment of data within the display space you can use these alignments<left aligned >right aligned ^centered =justified signdetermines the use of signs for the output+positive numbers have plus sign and negative numbers have minus sign -negative numbers have minus sign positive numbers are preceded by space and negative numbers have minus sign #specifies that the output should use the alternative display format for numbers for examplehexadecimal numbers will have prefix added to them specifies that the output should be sign aware and padded with zeros as needed to provide consistent output widthdetermines the full width of the data field (even if the data won' fit in the space provided,specifies that numeric data should have commas as thousands separator precisiondetermines the number of characters after the decimal point typespecifies the output typeeven if the input type doesn' match the types are split into three groupsstringuse an or nothing at all to specify string integerthe integer types are as followsb (binary) (character) (decimal) (octal) (hexadecimal with lowercase letters) (hexadecimal with uppercase letters)and (locale-sensitive decimal that uses the appropriate characters for the thousands separator