java regular detects whether a string contains characters other than numbers or letters
that is, strings can only be letters or numbers, or alphanumeric combinations
[\ da-zA-Z] it doesn"t seem to work this way
java regular detects whether a string contains characters other than numbers or letters
that is, strings can only be letters or numbers, or alphanumeric combinations
[\ da-zA-Z] it doesn"t seem to work this way
// *+
String reg = "^[\\da-zA-Z]*$";
// ;
String reg1 = "[^\\da-zA-Z]";
there are two Pattern as follows String pattern1 = "A775[0-9A-Z]"; String pattern2 = "A7750|A7756"; how can I use java to determine that the matching range of pattern2 is within the range of pattern1? Please take a look at it ...
feel [^] and (!?) What s the difference between them? ...
var num = 1234567.89 ; var num1 = num.replace( (?<= d)(?=( d{3})+ b) g, , ); b 1,234,567.89 var num2 = num.replace( (?<= d)(?=( d{3})) g, , ); b 1,2,3,4,567.89 b b ...
I want to extract SyncKey = {"Count": 4,"List": [{"Key": 1,"Val": 694398478},{"Key": 2,"Val": 694398818},{"Key": 3,"Val": 694398792},{"Key": 1000,"Val"...
for example: abdsdsdfsdf1526614206112164350fskdfskdf1526614199681037404bcmvbcvbmcnvz: match 1526614206112164350 and 1526614199681037404 in the string, add quotation marks on both sides, and process it as follows: abdsdsdfsdf "1526614206112164350 " fskdf...
The requirement is to replace the sensitive words in the HTML document. But I just want to replace plain text, and some html tags contain sensitive words, which I don t want to replace. For example, the src of the img tag contains sensitive words, and ...
convert the level of an inner-table number according to the format. The format is defined as follows (matching the last digits): Type 1 AAAAA (5 hyphens) ABCDEF Type 2 AAAA (4 hyphens, excluding 4) ABCDE Class 3 AAA (3 hyphens, excluding 4) ABCD Cla...