compareTo() Method In Java Example

Chapter: String Handling Last Updated: 09-06-2017 12:53:36 UTC

Program:

            /* ............... START ............... */
                
public class JavaCompareToExample {
	static String arr[] = { "Now", "is", "the", "time", "for", "all", "good", "men", "to", "come", "to", "the", "aid",
			"of", "their", "country" };

	public static void main(String args[]) {
		for (int j = 0; j < arr.length; j++) {
			for (int i = j + 1; i < arr.length; i++) {
				if (arr[i].compareTo(arr[j]) < 0) {
					String t = arr[j];

					arr[j] = arr[i];
					arr[i] = t;
				}
			}
			System.out.println(arr[j]);
		}
	}
}
                /* ............... END ............... */
        

Output

Now
aid
all
come
country
for
good
is
men
of
the
the
their
time
to
to

Notes:

• The method compareTo() is used for comparing two strings lexicographically. Each character of both the strings is converted into a Unicode value for comparison. If both the strings are equal then this method returns 0 else it returns positive or negative value. The result is positive if the first string is lexicographically greater than the second string else the result would be negative.
• If Value = 0 - argument string lexicographically equal to this string.
• If Value < 0 - argument string lexicographically greater than this string.
• If Value > 0 - value greater than 0 if the argument string lexicographically less than this string.

Tags

compareTo(), Java

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