BigInteger number = new BigInteger("269") The BigInteger class also provides a toString(radix) method for the same purpose. String hex = Double.toHexString(number) // '0x1.4d70a3d70a3d7p8' The toHexString() method directly converts the given number into hexadecimal form. String hex = Integer.toString(number, 16) // '10d' In toString() methods, we pass the radix (16 for hexadecimal) along with the number to convert. Using Number ClassesĪll Java number classes provide built-in methods for performing the conversion from decimal to equivalent hex number. Let us see a few simple and easy methods to convert a given decimal to hexadecimal. Converting a Decimal Number to Hexadecimal Hence, we can never get a hexadecimal, octal, or binary representation of any number in an int or other decimal types datatypes, so we need to represent hex/octal/binary numbers in String format only. Still, at last, it will be converted to decimal, and printing that variable will print the value in the decimal form only. Int octNumber = 01560 // '0' prefix to represent octal number int hexNum = 0X10D // '0X' or '0x' prefix to represent hexadecimal number We can assign binary, octal, or hexadecimal values to an int/long using predefined prefixes. It’s never possible that an int/float can hold any number in binary, octal, or hexadecimal format. In Java, all Number data types (int, long, float, double) always represent the values in decimal format. Representing Numbers of Different Bases in Java
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