Java Integer toOctalString() method with Examples

by Online Tutorials Library July 22, 2014

Java Integer toOctalString () Method

The toOctalString() method of Integer class returns a string representation of the integer argument as an unsigned integer in octal base 8.

The following characters are used as octal digits:

Note: If the argument is negative, the unsigned integer value is the argument plus 2³² otherwise, it is equal to the argument. This value is converted to a string of ASCII digits in octal (base 8) with no extra leading 0s. If the unsigned magnitude is zero, it is represented by a single zero character ‘0’ otherwise, the first character representation of the unsigned magnitude will not be the zero character.

Explanation:

Decimal Number	Operation (%)	Quotient	Remainder	Octal Result
224	8	28	0	0
28	8	3	4	40
3	8	0	3	340

Hence:

 Decimal Number = 224 Octal Number = 340 Varification     = 3*82 + 4*81 + 0*80 = 3*64 + 4*8 + 0* 1 = 192 + 32 + 0 = 224 

Syntax:

Following is the declaration of toOctalString() method:

Parameter:

DataType	Parameter	Description	Required/Optional
int	i	It specifies the number to be converted in octal string.	Required

Returns:

The toOctalString() method returns the string representation of the unsigned integer value represented by the argument in octal (base 8).

Exceptions:

Compatibility Version:

Java 1.0.2 and above.

Example 1

 public class IntegerToOctalStringExample1 { public static void main(String[] args) {     int i = 224;     System.out.println(“Number = ” + i);     //returns the string representation of the integer value in octal form     System.out.println(“Octal representation is = “+ Integer.toOctalString(i));     } } 

Test it Now

Output:

Number = 224 Octal representation is = 340

Example 2

 import java.util.Scanner; public class IntegerToOctalStringExample2 { public static void main(String[] args) { System.out.print(“Enter the Number = “); Scanner readInput = new Scanner(System.in); int i = readInput.nextInt(); readInput.close();     System.out.println(“Number = ” + i);     //returns the string representation of the integer value in octal form     System.out.println(“Octal representation is = ” + Integer.toOctalString(i));     } } 

Output:

Enter the Number = 175 Number = 175 Octal representation is = 257

Example 3

 public class IntegerToOctalStringExample3 { public static void main(String[] args) {     System.out.println(Integer.toOctalString(200));     System.out.println(Integer.toOctalString(-200));         System.out.println(Integer.toOctalString(1000));     System.out.println(Integer.toOctalString(-1000));     } } 

Test it Now

Output:

310 37777777470 1750 37777776030

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Java Integer toOctalString() method with Examples

Java Integer toOctalString () Method

Explanation:

Syntax:

Parameter:

Returns:

Exceptions:

Compatibility Version:

Example 1

Example 2

Example 3

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