equals() and equalsIgnoreCase(). : String Compare « Data Type « Java Tutorial

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Java Tutorial » Data Type » String Compare

2. 23. 5. equals() and equalsIgnoreCase().


class equalsDemo {

  public static void main(String args[]) {

    String s1 = "Hello";

    String s2 = "Hello";

    String s3 = "Good-bye";

    String s4 = "HELLO";

    System.out.println(s1 + " equals " + s2 + " -> " + s1.equals(s2));

    System.out.println(s1 + " equals " + s3 + " -> " + s1.equals(s3));

    System.out.println(s1 + " equals " + s4 + " -> " + s1.equals(s4));

    System.out.println(s1 + " equalsIgnoreCase " + s4 + " -> " + s1.equalsIgnoreCase(s4));

  }

}

2. 23. String Compare
	2. 23. 1.	Comparing Strings for Equality
	2. 23. 2.	To check for equality between two strings ignoring the case
	2. 23. 3.	Sequencing Strings
	2. 23. 4.	String length, charAt, equals
	2. 23. 5.	equals() and equalsIgnoreCase().
	2. 23. 6.	equals() vs ==
	2. 23. 7.	Region Matches
	2. 23. 8.	Compares all Strings in an array and returns the index at which the Strings begin to differ.
	2. 23. 9.	Compares all Strings in an array and returns the initial sequence of characters that is common to all of them.
	2. 23. 10.	Compares two Strings, and returns the index at which the Strings begin to differ.
	2. 23. 11.	Compares two Strings, and returns the portion where they differ.
	2. 23. 12.	Compress 2 adjacent (single or double) quotes into a single (s or d) quote when found in the middle of a String.

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