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Posted on Jan 02, 2017

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SOURCE: java code for adding octal, hexadecimal subtracting binary,

Hello desireejane,

One method is to do the following

- Convert the octal, hexadecimal or binary to decimal.
- Add or Subtract the decimal normally
- Convert the result back to octal, hexadecimal or binary.

**Convert the octal to decimal:**

public static long octalToDecimal(String octal) throws NumberFormatException {

// Initialize result to 0

long res = 0;

// Do not continue on an empty string

if (octal.isEmpty()) {

throw new NumberFormatException("Empty string is not an octal number");

}

// Consider each digit in the string

for (int i = 0; i < octal.length(); i++) {

// Get the nth char from the right (first = 0)

char n = octal.charAt(octal.length() - (i+1));

int f = (int) n - 48;

// Check if it's a valid bit

if (f < 0 || f > 7) {

// And if not, die horribly

throw new NumberFormatException("Not an octal number");

} else {

// Only add the value if it's a 1

res += f*Math.round(Math.pow(2.0, (3*i)));

}

}

return res;

}

Posted on Mar 25, 2009

The **octal** numeral system, or **oct** for short, is the base-8 number system, and uses the digits 0 to 7. Octal numerals can be made from binary numerals by grouping consecutive binary digits into groups of three (starting from the right). For example, the binary representation for decimal 74 is 1001010, which can be grouped into (00)1 001 010 - so the octal representation is 112.

In the decimal system each decimal place is a power of ten. For example:

In the octal system each place is a power of eight. For example:

By performing the calculation above in the familiar decimal system we see why 112 in octal is equal to 64+8+2 = 74 in decimal.

Hope this helps

In the decimal system each decimal place is a power of ten. For example:

In the octal system each place is a power of eight. For example:

By performing the calculation above in the familiar decimal system we see why 112 in octal is equal to 64+8+2 = 74 in decimal.

Hope this helps

Jul 15, 2014 | Necchi Sewing Machines

Sorry to be the carrier of bad news but the Casio FX-83 GT Plus does not
have a baseN calculation mode. You cannot do any arithmetic in binary,
octal or hexadecimal numeration.

Oct 06, 2013 | Casio Office Equipment & Supplies

Sorry to be the carrier of bad news but the Casio FX-83 GT Plus does not have a baseN calculation mode. You cannot do any arithmetic in binary, octal or hexadecimal numeration.

Oct 06, 2013 | Casio Office Equipment & Supplies

Each octal digit represents three binary digits. Simply convert each octal digit to three binary digits and string them together.

0o = 000b

1o = 001b

2o = 010b

3o = 011b

4o = 100b

5o = 101b

6o = 110b

7o = 111b

As an example, to convert 351o to binary:

3o is 011b

5o is 101b

1o is 001b

so 351o is 011101001b

0o = 000b

1o = 001b

2o = 010b

3o = 011b

4o = 100b

5o = 101b

6o = 110b

7o = 111b

As an example, to convert 351o to binary:

3o is 011b

5o is 101b

1o is 001b

so 351o is 011101001b

Sep 12, 2013 | Audio Players & Recorders

Hey there,

You can use this conversion tool to figure this out:

http://www.translatorscafe.com/cafe/units-converter/numbers/calculator/octal-to-binary/

Hope this helps. If it did, feel free to rate.

You can use this conversion tool to figure this out:

http://www.translatorscafe.com/cafe/units-converter/numbers/calculator/octal-to-binary/

Hope this helps. If it did, feel free to rate.

Mar 17, 2011 | Nokia 5310 Cellular Phone

Hello desireejane,

One method is to do the following

public static long octalToDecimal(String octal) throws NumberFormatException {

// Initialize result to 0

long res = 0;

// Do not continue on an empty string

if (octal.isEmpty()) {

throw new NumberFormatException("Empty string is not an octal number");

}

// Consider each digit in the string

for (int i = 0; i < octal.length(); i++) {

// Get the nth char from the right (first = 0)

char n = octal.charAt(octal.length() - (i+1));

int f = (int) n - 48;

// Check if it's a valid bit

if (f < 0 || f > 7) {

// And if not, die horribly

throw new NumberFormatException("Not an octal number");

} else {

// Only add the value if it's a 1

res += f*Math.round(Math.pow(2.0, (3*i)));

}

}

return res;

}

One method is to do the following

- Convert the octal, hexadecimal or binary to decimal.
- Add or Subtract the decimal normally
- Convert the result back to octal, hexadecimal or binary.

**Convert the octal to decimal:**

public static long octalToDecimal(String octal) throws NumberFormatException {

// Initialize result to 0

long res = 0;

// Do not continue on an empty string

if (octal.isEmpty()) {

throw new NumberFormatException("Empty string is not an octal number");

}

// Consider each digit in the string

for (int i = 0; i < octal.length(); i++) {

// Get the nth char from the right (first = 0)

char n = octal.charAt(octal.length() - (i+1));

int f = (int) n - 48;

// Check if it's a valid bit

if (f < 0 || f > 7) {

// And if not, die horribly

throw new NumberFormatException("Not an octal number");

} else {

// Only add the value if it's a 1

res += f*Math.round(Math.pow(2.0, (3*i)));

}

}

return res;

}

Mar 24, 2009 | Sun Java Programming Language (cdj-275)

Hello,

In the FX300Ms manual, the same for the FX350MS, there is no way to use base-n (binary, octal, hexadecimal) calculations.

Sorry.

In the FX300Ms manual, the same for the FX350MS, there is no way to use base-n (binary, octal, hexadecimal) calculations.

Sorry.

Mar 06, 2009 | Casio FX-300MS Calculator

Hello,

In the FX-300Ms manual, the same for the FX-82MS, there is no way to use base-n (binary, octal, hexadecimal) calculations.

Sorry.

In the FX-300Ms manual, the same for the FX-82MS, there is no way to use base-n (binary, octal, hexadecimal) calculations.

Sorry.

Feb 22, 2009 | Casio FX-300MS Calculator

To convert numbers you can use the printf() function

printf("%d", x'FF') hex to decimal

printf("%o", x'FF') hex to octal

If you want to save the value in another variables use sprintf

e.g

a = x'FF';

b = sprintf("%d",a)

printf("%d", x'FF') hex to decimal

printf("%o", x'FF') hex to octal

If you want to save the value in another variables use sprintf

e.g

a = x'FF';

b = sprintf("%d",a)

Jan 15, 2009 | Computers & Internet

hi look here number system conversion calculator Google Search

Oct 31, 2017 | Computers & Internet

Nov 22, 2017 | Computers & Internet

Nov 22, 2017 | Computers & Internet

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