Java – String equalsIgnoreCase(Object anObject) method

In this article, we will discuss string comparison using String’s equalsIgnoreCase() method, which ignores case differences while comparing 2 string contents

1. String’s equalsIgnoreCase(Object anObject) method:

  • This String method is used to perform string comparison, ignoring case differences between 2 string contents
  • Note: Another variation to this method equals(Object anObject) does String comparison considering case differences

1.1 Method Signature:

public boolean equalsIgnoreCase(Object anObject);

1.2 Returns:

  • Returns a boolean value either true or false
    • True –> if both string contents are equal, ignoring CASE differences
    • False –> if both string contents are NOT equal, ignoring CASE differences

2. Examples on equalsIgnoreCase() method:

  • String comparison program using equalsIgnoreCase() method

package in.bench.resources.string.methods;

public class StringEqualsIgnoreCaseMethod {

	public static void main(String[] args) {

		// string literal and objects
		String str1 = "bench";
		String str2 = new String("bench");
		String str3 = new String("BENCH");

		// comparing string literal and string object
		boolean bool1 = str1.equalsIgnoreCase(str2);

		// printing to the console
		System.out.println("str1 and str2 are equal ? : " + bool1);

		// comparing string literal and string object
		boolean bool2 = str1.equalsIgnoreCase(str3);

		// printing to the console
		System.out.println("str2 and str3 are equal ? : " + bool2);

		// in-line equality check
		System.out.println("str1 and ORACLE are equal ? : "
				+ str1.equalsIgnoreCase("ORACLE"));


str1 and str2 are equal ? : true
str2 and str3 are equal ? : true
str1 and ORACLE are equal ? : false

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Happy Coding !!
Happy Learning !!

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