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Java String codePointBefore() Method

❮ String Methods


Example

Return the Unicode of the first character in a string (the Unicode value of "H" is 72):

String myStr = "Hello";
int result = myStr.codePointBefore(1);
System.out.println(result);

Run example »


Definition and Usage

The codePointBefore() method returns the Unicode value of the character before the specified index in a string.

The index of the first character is 1, the second character is 2, and so on.

Note: The value 0 will generate an error, as this is a negative number (out of reach).


Syntax

public int codePointBefore(int index)

Parameter Values

Parameter Description
index An int value, representing the index following the Unicode that should be returned

Technical Details

Returns: An int value, representing the Unicode value before the specified index
Throws: IndexOutOfBoundsException - if index is negative or not less than the length of the specified string
Java Version: 1.5

❮ String Methods