regex - How to find if a string contains "ONLY" Special characters in java -

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suppose define string as:

string splchrs      = "/-@#$%^&_-+=()" ;  string inputstring = getinputstring();  //gets string end user

i want check if string "inputstring" contains only special characters contained in string "splchrs" i.e. want set boolean flag true if inputstring contained characters present in "splchrs"

eg:  string inputstring = "#######@";  //set boolean flag=true

and boolean flag set false if contained letters did not contain in "splchrs"

eg:  string inputstring = "######abc"; //set boolean flag=false

you can use:

string splchrs = "-/@#$%^&_+=()" ; boolean found = inputstring.matches("[" + splchrs + "]+");

ps: have rearranged characters in splchrs variable make sure hyphen @ starting avoid escaping. removed redundant (and problematic) hyphen middle of string otherwise give different meaning character class (denoted range).

thanks @alanmoore note character in character class:

^ if it's listed first; ] if it's not listed first; [ anywhere; , & if it's followed &.


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