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Java Tutorial : Java String [codePointBefore(int index) method]

CodePointBeforeDemo.java

/*
 * public int codePointBefore(int index)
 * 
 * Parameters: 
 * ---------- 
 * index - the index following the code point that
 * should be returned
 * 
 * Returns: 
 * ------- 
 * the Unicode code point value before the given index.
 * 
 * Throws: 
 * ------ 
 * IndexOutOfBoundsException - if the index argument is
 * less than 1 or greater than the length of this
 * string.
 */
public class CodePointBeforeDemo
{

    public static void main(String[] args)
    {
        String str = "JAVA";
        System.out.println("String = " + str);

        // codepoint before index 1 i.e J
        int retval = str.codePointBefore(1);

        // prints character before index1 in string
        System.out.println("Character(unicode point) = " + retval);

    }

}