If the conversion attempt fails -- for instance, if you try to convert the Java String fred to an int -- the Integer parseInt method will throw a NumberFormatException, which you should handle in a try/catch block.f the String represented by the variable myString is a valid integer like â1â, â200â, and so on, it will be converted to a Java int. If it fails for any reason, the conversion can throw a NumberFormatException, so your code should be a little bit longer to account for this, as shown in the next example.
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in different PO number range , the current PO number is not correct, for example, range 47:4700000000-4799999999, current number is 4700022063, but actually I can find PO# 4700089871. in other number ranges, there are also the same problem.