Thursday, March 21, 2013

Java :: Check whether two Strings are equal without using the equality(==) operator or the equals() method.

You can exploit the uniqueness property of Set Collection to accomplish this.

Observe the following code:

 * Returns true if the given strings are equal. else returns false.
public boolean isEquals(String one, String two) {
    Set<String> temp = new HashSet<String>();

    return (temp.size() == 1);

The size of set will be greater than 1 only if the given strings are different. Ofcourse the add method will internally use equals() and hashCode() methods.

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