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  1. /* package whatever; // don't place package name! */
  2.  
  3. import java.util.*;
  4. import java.lang.*;
  5. import java.io.*;
  6. import java.util.regex.Pattern;
  7.  
  8. /* Name of the class has to be "Main" only if the class is public. */
  9. class Ideone
  10. {
  11. 	public static void main (String[] args) throws java.lang.Exception
  12. 	{
  13. 		String user = "jimin";
  14. 		String ssn = "222-11-222";
  15. 		String password = "WhatAWonderfulWorldItWouldBe";
  16.  
  17. 		if (! isValidSSN(ssn)) {
  18. 			System.err.println("Invalid SSN");
  19. 		}
  20.  
  21. 		String xdSsn = getObfuscatedSSN(ssn);
  22. 		System.out.println(isValidSSN(ssn) + " " + xdSsn);
  23.  
  24. 		String xdPw = getObfuscatedPassword(password);
  25. 		System.out.println(password.length() + " " + xdPw + " " + xdPw.length());
  26.  
  27. 	    System.out.printf("%12s\t%s\t%s%n", user, xdSsn, xdPw);
  28.  
  29. 	    ssn = "12a-43-009";
  30. 	    System.out.println(isValidSSN(ssn));
  31.    	    ssn = "123-43-00900";
  32. 	    System.out.println(isValidSSN(ssn));
  33.  
  34. 	    System.out.println("--user check--");
  35. 	    user = "blah";
  36. 	    System.out.println(isValidUsername(user));
  37. 	    user = "blah2";
  38. 	    System.out.println(isValidUsername(user));
  39.  
  40. 	    user = " ";
  41. 	    System.out.println(isValidUsername(user));
  42. 	    user = "bl4h";
  43. 	    System.out.println(isValidUsername(user));
  44.  
  45. 	    user = " me";
  46. 	    System.out.println(isValidUsername(user));
  47.  
  48. 	    user = "me ";
  49. 	    System.out.println(isValidUsername(user));
  50.  
  51. 	    user = "Jack Flash";
  52. 	    System.out.println(isValidUsername(user));
  53.  
  54. 	}
  55.  
  56.  
  57. 	public static String getObfuscatedPassword(String pw)
  58. 	{
  59. 		Objects.requireNonNull(pw, "Null pw input");
  60. 		return pw.replaceAll(".", "X");
  61. 	}
  62.  
  63. 	public static String getObfuscatedSSN(String ssn)
  64. 	{
  65. 		Objects.requireNonNull(ssn, "Null ssn input");
  66.  
  67. 		return ssn.replaceAll("[0-9]", "X");
  68. 	}
  69.  
  70. 	public static boolean isValidSSN(String ssn)
  71. 	{
  72. 		if (ssn == null || ssn.isEmpty()) {
  73. 			return false;
  74. 		}
  75.  
  76. 		// ensure in the format of ###-##-###
  77. 		return Pattern.matches("[\\d]{3}-[\\d]{2}-[\\d]{3}", ssn);
  78. 	}
  79.  
  80. 	public static boolean isValidUsername(String name)
  81. 	{
  82. 		boolean charFound = false;
  83. 		boolean digitFound = false;
  84. 		if (name == null || name.isEmpty()) {
  85. 			return false;
  86. 		}
  87.  
  88. 		for (int i = 0; i < name.length(); ++i) {
  89. 			charFound = charFound || Character.isLetter(name.charAt(i));
  90. 			digitFound = digitFound || Character.isDigit(name.charAt(i));
  91. 		}
  92.  
  93. 		return charFound && ! digitFound;
  94. 	}
  95. }
Success #stdin #stdout 0.05s 2184192KB
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stdin
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Standard input is empty
stdout
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true XXX-XX-XXX
28 XXXXXXXXXXXXXXXXXXXXXXXXXXXX 28
       jimin	XXX-XX-XXX	XXXXXXXXXXXXXXXXXXXXXXXXXXXX
false
false
--user check--
true
false
false
false
true
true
true
https://ideone.com/cPV2ob
language:
Java (HotSpot 12)
created:
5 years ago
visibility:
public

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