How to check equalignorecase with startsWith in hashmap in java [duplicate]

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how to search like LIKe operator in sql in hash map in java

Hi

How to check equalignorecase with startsWith in hashmap in j开发者_开发技巧ava give example

Thanks

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I'm having trouble understanding your question. However, from what I can deduce:

Keys in a HashMap are compared for equality using the equals(Object o) operation. You cannot change this. However, you can implement your own key, for example to perform a case-insensitive comparison:

public class Key {
  private final String s;
  private final int hashCode;

  public Key(String s) {
    this.s = s;
    this.hashCode = s.toUpperCase().hashCode();
  }

  public int hashCode() { return hashCode; }

  public boolean equals(Object o) {
    if (this == o) {
      return true;
    } else if (o instanceof Key) {
      return this.s.equalsIgnoreCase(((Key)o).s);
    } else {
      return false;
    }

  }
}

---

Sure:

Given:

Map<String,String> map = new HashMap<String,String>();

You may call:

map.get( someKey ).equalsIgnoreCase( someValue )

and

 map.get( someKey ).startsWith( someOtherValue );