Convert Decimal to Octal Program in C++

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C++ program to Convert Decimal to Octal

A repeated division and remainder algorithm can convert decimal to binary, octal, or hexadecimal.

Algorithom for Number Conversion

  • Divide the decimal number by the desired target radix (2, 8, or 16).
  • Append the remainder as the next most significant digit.
  • Repeat until the decimal number has reached zero.

Before write decimal to octal conversion code you must be basic kanowledge about For Loop in C++, While Loop in C++ and Modulus Operator in C++.

C++ program to convert Decimal to Octal


void main()
int no,rem[20],i=0,j;
cout<<"Enter any Decimal Number: ";
cout<<"Binary Number is: ";
for(j = i - 1; j > = 0 ; j--)


Enter any Decimal Number: 23
Binary number is: 27
convert binary to decimal number in c++
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Path variable is set for providing path for all Java tools like java, javac, javap, javah, jar, appletviewer which are used in java programming. All these tools are available in bin folders so we set path upto bin folders.

Classpath variable is set for providing a path for predefined Java classes which is used in our application. All classes are available in lib/rt.jar so we set classpath upto lib/rt.jar.

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