题解 | #密码强度等级#
密码强度等级
http://www.nowcoder.com/practice/52d382c2a7164767bca2064c1c9d5361
多个if条件判断
import java.util.Scanner; public class Main { public String GetPwdSecurityLevel(String pPasswordStr) { int score = 0; boolean number = false; boolean upper = false; boolean lower = false; boolean symbol = false; boolean numberOnce = true; boolean symbolOnce = true; if (pPasswordStr.length() <= 4) { score += 5; } else if (pPasswordStr.length() <= 7) { score += 10; } else { score += 25; } for (char ch : pPasswordStr.toCharArray()) { if (ch >= '0' && ch <= '9') { if (number && numberOnce) { score += 20; numberOnce = false; } number = true; } else if (ch >= 'a' && ch <= 'z') { lower = true; } else if (ch >= 'A' && ch <= 'Z') { upper = true; } else if ( ch >= 0x21 && ch <= 0x2F || ch >= 0x3A && ch <= 0x40 || ch >= 0x5B && ch <= 0x60 || ch >= 0x7B && ch <= 0x7E) { if (symbol && symbolOnce) { score += 25; symbolOnce = false; } symbol = true; } } if (number && numberOnce) { score += 10; } if (symbol && symbolOnce) { score += 10; } if (lower && upper) { score += 20; } else if (lower || upper) { score += 10; } if (lower && upper && number && symbol) { score += 5; } else if ((lower || upper) && number && symbol) { score += 3; } else if ((lower || upper) && number) { score += 2; } if (score >= 90) { return "VERY_SECURE"; } else if (score >= 80) { return "SECURE"; } else if (score >= 70) { return "VERY_STRONG"; } else if (score >= 60) { return "STRONG"; } else if (score >= 50) { return "AVERAGE"; } else if (score >= 25) { return "WEAK"; } else { return "VERY_WEAK"; } } public Main() { Scanner in = new Scanner(System.in); while (in.hasNextLine()) { String pPasswordStr = in.nextLine(); String safelevel = GetPwdSecurityLevel(pPasswordStr); System.out.println(safelevel); } } public static void main(String[] args) { Main solution = new Main(); } }