Java Convert Octal to Decimal

We can convert octal to decimal in java using Integer.parseInt() method or custom logic.

Java Octal to Decimal conversion: Integer.parseInt()

The Integer.parseInt() method converts a string to an int with the given radix. If you pass 8 as a radix, it converts an octal string into decimal. Let us see the signature of parseInt() method:

Let's see the simple example of converting octal to decimal in java.

Output:

81

Let's see another example of Integer.parseInt() method.

Output:

81
19
8

Java Octal to Decimal conversion: Custom Logic

We can convert octal to decimal in java using custom logic.

Output:

Decimal of 121 is: 81
Decimal of 23: 19
Decimal of 10 is: 8

References

1. Integer.parseInt() JavaDoc
2. Integer.parseInt() Javatpoint