How can i compare two input values to two arrays

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Difference between HashMap, LinkedHashMap and TreeMap 16 answers

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So, based on what I can see, there is a direct correlation between the userNameArray and passwordArray , meaning that the value at n in the userNameArray corresponds to the value at n in the passwordArray

This means your entire search can be boiled down to a single if statement...

for (int index = 0; index < userNameArray.length; index++) {
    if (str1.equals(userNameArray[index]) && str2.equals(passwordArray[index])) {
        return true;
    }
}
return false

Now, having said, it would be SO much simpler if you have some kind of plain old Java object (POJO) which encapsulated the username and password it could then provide validation functionality

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