charAt!?

Programação Java
#1

Alguém poderia me explicar para que serve esse operador ou função?
coloquei operador e função é pq naum sei o que é ? charAt

Brigaduuuuuuuuuu!!!

#2

/**
* Returns the <code>char</code> value at the
* specified index. An index ranges from <code>0</code> to
* <code>length() - 1</code>. The first <code>char</code> value of the sequence
* is at index <code>0</code>, the next at index <code>1</code>,
* and so on, as for array indexing.
*
* <p>If the <code>char</code> value specified by the index is a
* <a href=“Character.html#unicode”>surrogate</a>, the surrogate
* value is returned.
*
* @param index the index of the <code>char</code> value.
* @return the <code>char</code> value at the specified index of this string.
* The first <code>char</code> value is at index <code>0</code>.
* @exception IndexOutOfBoundsException if the <code>index</code>
* argument is negative or not less than the length of this
* string.
*/

Retorna o caracter da posição n da string. Ex

 String x = "Roger"
 char c = x.charAt(0)

No char c teremos ‘R’

flw

#3

COMPREENDI SÓ FALTAVA ISSO.

BEIJITOS

#4