Random password of arbitrary number of characters are generated.
Used characters and number of characters is input, password of the specified number is generated.
Please select the character to be used from the alphabet (uppercase), the alphabet (lowercase), and the number and the sign about the used character.
If you check the "Don't use the same character", the same character is not used in a single password.
The error is displayed if "Don't use the same character" is checked when the number of characters is less than the kind of the used character.