Java String codePointBefore() Method
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Java String codePointBefore()
The codePointBefore() method returns the Unicode value of the character before the given index in a string.
The index number starts from 0 and goes to n-1, where n is length of the string.
Example
Java Compiler
public class myClass
{
public static void main(String[] args)
{
String str = "Apple";
System.out.print(str.codePointBefore(1)); // 65
}
}
Output
65
Syntax
public int codePointBefore(int index)
Parameter Values
| Value | Type | Explanation |
|---|---|---|
| index | Required | Specifies an index number. |
Return Value
| Value | Explanation |
|---|---|
| Number | Returns the Unicode value of the character before the given index in a string. |
| Error | Returns StringIndexOutOfBoundsException, if index number is less than 1 or greater than the length of the given string. |
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