Java compareTo () method

Java String class

compareTo () method for comparing two ways:

• String object to be compared with.
• Compares two strings lexicographically.

grammar

int compareTo(Object o)

或

int compareTo(String anotherString)

parameter

• o - the object to compare.

• anotherString - the string to compare.

return value

• If the argument string is equal to this string, it returns a value of 0;
• If this string is less than the string parameter, it returns a value less than zero;
• If this string is greater than the string parameter, a value greater than 0 is returned.

Examples

public class Test {

	public static void main(String args[]) {
		String str1 = "Strings";
		String str2 = "Strings";
		String str3 = "Strings123";

		int result = str1.compareTo( str2 );
		System.out.println(result);
	  
		result = str2.compareTo( str3 );
		System.out.println(result);
	 
		result = str3.compareTo( str1 );
		System.out.println(result);
	}
}

The above program execution results:

0
-3
3

Java String class