Converts any value of a primitive data type (<b>boolean</b>, <b>byte</b>, <b>char</b>, <b>color</b>, <b>double</b>, <b>float</b>, <b>int</b>, or <b>long</b>) to its numeric character representation.<br />
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When an array of values is passed in, then a <b>char</b> array of the same length is returned.