String’s compareTo method compares two String lexicographically. Both String get converted to unicode value and then compares.
If you call str1.compareTo(str2)
then if it returns
positive number : str1 is greater than str2
0: str1 is equal to str2
negative number : str1 is smaller than str2
Java String compareTo example
package org.arpit.java2blog;
public class StringCompareToExampleMain {
public static void main(String[] args) {
String str1="java2blog";
String str2="hello";
String str3="world";
String str4="java2blog";
String str5="JAVA2BLOG";
System.out.println("comparing java2blog with hello : "+str1.compareTo(str2));
System.out.println("comparing hello with world : "+str2.compareTo(str3));
System.out.println("comparing java2blog with java2blog : "+str1.compareTo(str4));
System.out.println("comparing java2blog with JAVA2BLOG : "+str1.compareTo(str5));
}
}
When you run above program, you will get below output:
comparing java2blog with hello : 2 comparing hello with world : -15 comparing java2blog with java2blog : 0 comparing java2blog with JAVA2BLOG : 32
