Java String equalsIgnoreCase()

The syntax of the string equalsIgnoreCase() method is:

 string.equalsIgnoreCase(String str)

Here, string is an object of the String class.

equalsIgnoreCase() Parameters

The string equalsIgnoreCase() method takes a single parameter.

• str - the string to be compared

equalsToIgnoreCase() Return Value

• returns true if the strings are equal, ignoring case considerations
• returns false if the strings are not equal
• returns false if the str argument is null

Example 1: Java String equalsIgnoreCase()

 class Main { public static void main(String[] args) { String str1 = "Learn Java"; String str2 = "learn java"; String str3 = "Learn Kolin"; Boolean result; // comparing str1 with str2 result = str1.equalsIgnoreCase(str2); System.out.println(result); // true // comparing str1 with str3 result = str1.equalsIgnoreCase(str3); System.out.println(result); // false // comparing str3 with str1 result = str3.equalsIgnoreCase(str1); System.out.println(result); // false } }

Here,

• str1 and str2 are equal if you do not consider case differences. Hence, str1.equalsIgnoreCase(str2) returns true.
• str1 and str3 are not equal. Hence, str1.equalsIgnoreCase(str3) and str3.equalsIgnoreCase(str1) returns false.

Example 2: Check if Two Strings are Equal

 class Main { public static void main(String[] args) { String str1 = "LEARN JAVA"; String str2 = "Learn Java"; // if str1 and str2 are equal (ignoring case differences), // the result is true if (str1.equalsIgnoreCase(str2)) { System.out.println("str1 and str2 are equal"); } else { System.out.println("str1 and str2 are not equal"); } } }

Output

 str1 and str2 are equal

If you need to compare two strings with case differences taken into consideration, use either

• Java String equals()
• Java String compareTo()