How do I compare string regardless their case?

Here is an example of comparing two string for equality without considering their case sensitivity. To do this we can use equalsIgnoreCase() method of the String class. Let’s see an example below:

package org.kodejava.example.basic;

public class EqualsIgnoreCase {
    public static void main(String[] args) {
        String uppercase = "ABCDEFGHI";
        String mixed = "aBCdEFghI";

        // To compare two string equality regarding it case use the
        // String.equalsIgnoreCase method.
        if (uppercase.equalsIgnoreCase(mixed)) {
            System.out.println("Uppercase and Mixed equals.");
        }
    }
}