In this Java example we will see how Java String is compared with another Java String object or Java Object in Java.

String class in Java have following methods to compare Java Strings.

1. int compareTo( String anotherString ) – compare two string based upon the unicode value of each character in the String.
   Returns negative int if first string is less than another
   Returns positive int if first string is grater than another
   Returns 0 if both strings are same.
2. int compareTo( Object obj ) – Behaves exactly like compareTo ( String anotherString) if the argument object is of type String, otherwise throws ClassCastException.
3. int compareToIgnoreCase( String anotherString ) – Compares two strings ignoring the character case of the given String.

/**
 * Java String compare example  by codebind.com.
 */


public class JavaStringCompare {

    public static void main(String args[]) {


        String str = "Hello World";
        String anotherString = "hello world";
        Object objStr = str;

        /* compare two strings, case sensitive */
        System.out.println(str.compareTo(anotherString));

        /* compare two strings, ignores character case  */
        System.out.println(str.compareToIgnoreCase(anotherString));

        /* compare string with object */
        System.out.println(str.compareTo(objStr.toString()));

    }

}


/*
Output:
-32
0
0
*/

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• Java Example – Math and Arithmetic Operators in Java
• Java Example – Variables and Types in Java
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• Java Example – The If-Else If Statement, Nested If Statements, Logical Operators
• Java Example – Arrays in Java Example
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• Java Example – Comparing two strings
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• Java Example – Convert String to Character Array
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