First, create a BigInteger.BigInteger val = new BigInteger("198");Let us convert it to Binary, with radix as 2.val.toString(2);Convert it to Octal, with radix as 8.val.toString(8);Convert it to HexaDecimal, with radix as 16.val.toString(16);The following is an example −Example Live Demoimport java.math.BigInteger; public class Main { public static void main(String[] args) { BigInteger val = new BigInteger("198"); System.out.println("Value: " + val); // binary System.out.println("Converted to Binary: " + val.toString(2)); // octal ... Read More

Let us set a radix here as.// radix int r = 32;Include the radix here as a BigInteger constructor.BigInteger one = new BigInteger("vv", r);Now get its string representation −String strResult = one.toString(radix);The following is an example −Example Live Demoimport java.math.*; public class Demo { public static void main(String[] args) { // radix int r = 32; BigInteger one = new BigInteger("vv", r); String strResult = one.toString(r); System.out.println(strResult); } }Outputvv

Set a BigInteger object.BigInteger one;Now, create a ByteArray −byte byteArr[] = new byte[] { 0x1, 0x00, 0x00 }; one = new BigInteger(byteArr);For Decimal, we have used toString() method without any parameter value.String strResult = one.toString();The following is an example −Example Live Demoimport java.math.*; public class Demo { public static void main(String[] args) { BigInteger one; // ByteArray byte byteArr[] = new byte[] { 0x1, 0x00, 0x00 }; one = new BigInteger(byteArr); // Decimal String strResult = one.toString(); System.out.println("ByteArray to Decimal = "+strResult); } }OutputByteArray to Decimal = 65536

Set a BigInteger object.BigInteger one;Now, create a ByteArray.byte byteArr[] = new byte[] { 0x1, 0x00, 0x00 }; one = new BigInteger(byteArr);For Octal, we have used 8 as the toString() method parameter.String strResult = one.toString(8);The following is an example −Example Live Demoimport java.math.*; public class Demo {    public static void main(String[] args) {       BigInteger one;       // ByteArray       byte byteArr[] = new byte[] { 0x1, 0x00, 0x00 };       one = new BigInteger(byteArr);       // Octal       String strResult = one.toString(8);       System.out.println("ByteArray to Octal = "+strResult);    } }OutputByteArray to Octal = 200000

Set a BigInteger object.BigInteger one;Now, create a ByteArray.byte byteArr[] = new byte[] { 0x1, 0x00, 0x00 }; one = new BigInteger(byteArr);For Binary, we have used 2 as the toString() method parameter.String strResult = one.toString(2);The following is an example −Example Live Demoimport java.math.*; public class Demo {    public static void main(String[] args) {       // BigInteger object       BigInteger one;       byte byteArr[] = new byte[] { 0x1, 0x00, 0x00 };       one = new BigInteger(byteArr);       String strResult = one.toString(2);       System.out.println("ByteArray to Binary = "+strResult);    } }OutputByteArray to Binary = 10000000000000000

Firstly, take two BigInteger objects and set values.BigInteger one, two; one = new BigInteger("99");Now, parse BigInteger object “two” into Octal.two = new BigInteger("1100", 8); String str = two.toString(8);Above, we have used the following constructor. Here, radix is set as 8 for Octal. for both BigInteger constructor and toString() method.BigInteger(String val, int radix)This constructor is used to translate the String representation of a BigInteger in the specified radix into a BigInteger.The following is an example −Example Live Demoimport java.math.*; public class Demo {    public static void main(String[] args) {       BigInteger one, two;       one = new ... Read More

Firstly, take two BigInteger objects and set values.BigInteger one, two; one = new BigInteger("99"); two = new BigInteger("978");Now, parse BigInteger object “two” into Binary.two = new BigInteger("1111010010", 2); String str = two.toString(2);Above, we have used the following constructor. Here, radix is set as 2 for Binary for both BigInteger constructor and toString() method.BigInteger(String val, int radix)This constructor is used to translate the String representation of a BigInteger in the specified radix into a BigInteger.The following is an example −Example Live Demoimport java.math.*; public class Demo {    public static void main(String[] args) {       BigInteger one, two;     ... Read More

To parse the hexadecimal string to create BigInteger, use the following BigInteger constructor and set the radix as 16 for Hexadecimal.BigInteger(String val, int radix)This constructor is used to translate the String representation of a BigInteger in the specified radix into a BigInteger.In the below example, we have set the BigInteger and radix is set as 16 −Example Live Demoimport java.math.*; public class Demo {    public static void main(String[] args) {       BigInteger one, two;       String hexStr = "290f98";       one = new BigInteger("250");       // parsing       two = ... Read More

To parse the decimal string to create BigInteger, just set the decimal string in the BigInteger.Here is our BigInteger.BigInteger one; String decStr = "687879"; one = new BigInteger(decStr);Let us see another example −Example Live Demoimport java.math.*; public class Demo {    public static void main(String[] args) {       BigInteger one, two;       String decStr = "4373427";       one = new BigInteger("250");       two = new BigInteger(decStr);       System.out.println("Result (BigInteger) : " +one);       System.out.println("Result (Parsing Decimal String) : " +two);    } }OutputResult (BigInteger) : 250 Result (Parsing Decimal String) : 4373427

To parse the octal string to create BigInteger, use the following BigInteger constructor and set the radix as 8 for Octal −BigInteger(String val, int radix)This constructor is used to translate the String representation of a BigInteger in the specified radix into a BigInteger.In the below example, we have set the BigInteger and radix is set as 8.BigInteger one, two; one = new BigInteger("12"); two = new BigInteger("4373427", 8);The following is the complete example −Example Live Demoimport java.math.*; public class Demo {    public static void main(String[] args) {       BigInteger one, two;       one = new BigInteger("12"); ... Read More