Java - String compareToIgnoreCase() Method

Description:

This method compares two strings lexicographically, ignoring case differences.
Syntax:

Here is the syntax of this method:
int compareToIgnoreCase(String str)
Parameters:

Here is the detail of parameters:


  • str -- the String to be compared.

Return Value:

This method returns a negative integer, zero, or a positive integer as the specified String is greater than, equal to, or less than this String, ignoring case considerations.

Example:
public class Test {

   public static void main(String args[]) {
      String str1 = "Strings are immutable";
      String str2 = "Strings are immutable";
      String str3 = "Integers are not immutable";

      int result = str1.compareToIgnoreCase( str2 );
      System.out.println(result);
   
      result = str2.compareToIgnoreCase( str3 );
      System.out.println(result);
  
      result = str3.compareToIgnoreCase( str1 );
      System.out.println(result);
   }
}
This produces following result:


output:

0
10
-10


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