Java String equals Example

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String class equals method example String class equals method example:- This method demonstrates the working of equals() method. it returns boolean values true and false after examining the two objects taken under checking process Syntax:-equals(Object anObject) Here is the code:- /** * @(#) EqualsString.java * EqualsStringString class demonstrates the working of equals() method of String class of lang package */ public class EqualsString { public static void main(String args[]) { Integer in = new Integer(12234); String str = new String("12234"); // since both objects posses same value but the type of value is // different. Here there are two types of objects compared one is // Integer type and the other one is String type so the method returns // false as values types didnot match System.out.println( "value types don't matches: " + in.equals(str)); // method returns true if and only if none of the Strings compared // posses null value and also must that there value matches each other // in sequence, cases and all aspects of equality including value types String str1 = new String(" hare krishna hare rama! rama rama hare hare"); String str2 = str1.substring(0); String str3 = " ", str4 = " "; String str5 = "heram", str6 = "Heram"; //Method returns true here as both Strings str1 and str2 posses same values System.out.println(" 'true' is returned: " + str1.equals(str2)); //Both the String mentioned above don't have any value but still Strings are equal as both are null type objects compared" System.out.println("Method returns true here: " + str3.equals(str4)); //Method here returns false because values of Strings did not match when their respective letters case are concerned System.out.println(" 'false' is returned: " + str5.equals(str6)); } } Output of the program:- -------------------------------- value types don't matches: false 'true' is returned: true Method returns true here: true 'false' is returned: false