Add values to a HashSet by checking the input of the method. for example: if inp

Question

Add values to a HashSet by checking the input of the method.

for example: if input AAA111, and the key of enr AAA323: ( if letters matches)

add the value of both to the Set

this solution is wrong:

public static Set match(String a) i 89e 90 91 92 93 94 95 96 97 98 unit HashSet0; new Set = Pattern p = Pattern. compile(" [A-Za-z]+"); Matcher m = p.matcher(a); entry enn.entrySet()) { : for (Map. Entry for (String value: entry.getValueO) I 100 101 102 103 104 105 106 107 108 109 110 if (entry.getKeyC) == m.groupC)) { unit.add(value); return unit

Explanation / Answer

public static Set<String> match(String a) {
    Set<String> unit = new HashSet<String>();
  Pattern p = Pattern.compile("(^[A-Za-z]+)(\d+)");
  Matcher matcher = p.matcher(a);
  // to find if input string matches the pattern
  if(matcher.find()) {
   // Split only Letters from input string
   String aMatch = matcher.group(1);
   for (Map.Entry<String, Set<String>> entry : enr.entrySet()) {
     for (String value : entry.getValue()) {
     matcher = p.matcher(value);
     // to find if enr value matches pattern
                 if (matcher.find()) {
                 // Split only Letters from enr value string
                 String bMatch = matcher.group(1);
                 // to check if both the letters are equal. If case of letters can be ignored then use equalsIgnoreCase in the place of equals
                 if(aMatch.equals(bMatch))
                   unit.add(value);
                 }
             }
         }

   
  }
}

Try this code and share the feadback in comment section. Rate it

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.