What are the different ways of comparing Strings in Java

Question

I am new in Java, I know this might be very easy for most of you but as a begineer I am finding it difficult to understand the different methods of comparing strings.

Answer 1

The different ways of comparing string in Java are as follows:

Using user-defined function

1. if (string1 > string2) - it will return a positive value.
2. if both the strings are equal lexicographically
   i.e.(string1 == string2) it will return 0.
3. if (string1 < string2) it will return a negative value.

The value is calculated as (int)str1.charAt(i) – (int)str2.charAt(i)

Using String.equals()

Using String.equalsIgnoreCase()

Using Objects.equals()

Using String.compareTo()