how to convert 149 to 200 in java

String testValue = "149";

getMaxValue(testValue);
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private static int getMaxValue(String value) {
double maxValue = Double.parseDouble(value);
int digitNumber = value.length();
return (int) ((int) (Math.ceil(maxValue / Math.pow(10, digitNumber-1))) *        Math.pow(10, digitNumber-1));

}