Converting a String to Hexadecimal in Java

Convert String to Hexadecimal

You cannot convert a string to hexadecimal like that, only a number can be formatted with %016x.

You can fix this by parsing "123456":

String.format("%016x", Integer.parseInt("123456"));

convert string to hexadecimal string

String x = "131008130225002";
System.out.println(new BigInteger(x).toString(16));

The output is 7726b510936a.

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