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simple password Strength checker

Mon Feb 28, 2011 11:24 am

Password strength tester which you can use easily and add more code to serve your application functions.
Code:
public class passwordStrength {

    private 
int checkPasswordStrength(String password) {
                
int strengthPercentage=0;
        
String[] partialRegexChecks = { ".*[a-z]+.*"// lower
                
".*[A-Z]+.*"// upper
                
".*[\\d]+.*"// digits
                
".*[@#$%]+.*" // symbols
        
};


                    if (
password.matches(partialRegexChecks[0])) {
                    
strengthPercentage+=25;
            }
                    if (
password.matches(partialRegexChecks[1])) {
                    
strengthPercentage+=25;
            }
                    if (
password.matches(partialRegexChecks[2])) {
                    
strengthPercentage+=25;
            }
                    if (
password.matches(partialRegexChecks[3])) {
                    
strengthPercentage+=25;
            }


        return 
strengthPercentage;
    }

}
 




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Topic Tags

Java Strings, Java Regular Expression