JAVA EE: Java Tutorial : Java String [regionMatches(int toffset, String other, int ooffset, int len) method]

Monday 28 March 2016

Java Tutorial : Java String [regionMatches(int toffset, String other, int ooffset, int len) method]

Click here to watch in Youtube :
https://www.youtube.com/watch?v=CWm3zVkfos8&list=UUhwKlOVR041tngjerWxVccw

Click the below Image to Enlarge

Java Tutorial : Java String [regionMatches(int toffset, String other, int ooffset, int len) method]

RegionMatchesDemo.java

/*
 * public boolean regionMatches(int toffset,
 *                              String other, 
 *                              int ooffset, 
 *                              int len)
 *
 * Parameters:
 * ----------
 * toffset - the starting offset of the subregion in
 * this string.
 *
 * other - the string argument.
 *
 * ooffset - the starting offset of the subregion in
 * the string argument.
 *
 * len - the number of characters to compare.
 *
 * Returns:
 * -------
 * true if the specified subregion of this string
 * exactly matches the specified subregion of the
 * string argument; false otherwise.
 */

public class RegionMatchesDemo
{
    public static void main(String[] args)
    {

        String str1 = new String("Welcome to ramj2ee.com");
        String str2 = new String("ramj2ee");
        String str3 = new String("RAMJ2EE");
        String str4 = new String("hello");

        System.out
                .print("\"Welcome to ramj2ee.com\".regionMatches(11,\"ramj2ee\",0,7) = ");
        System.out.println(str1.regionMatches(11, str2, 0, 7));

        System.out
                .print("\"Welcome to ramj2ee.com\".regionMatches(11,\"RAMJ2EE\",0,7) = ");
        System.out.println(str1.regionMatches(11, str3, 0, 7));

        System.out
                .print("\"Welcome to ramj2ee.com\".regionMatches(11,\"hello\",0,7) = ");
        System.out.println(str1.regionMatches(11, str4, 0, 7));
    }
}

Ouput

"Welcome to ramj2ee.com".regionMatches(11,"ramj2ee",0,7) = true
"Welcome to ramj2ee.com".regionMatches(11,"RAMJ2EE",0,7) = false
"Welcome to ramj2ee.com".regionMatches(11,"hello",0,7) = false