Java Program to Convert Octal to Decimal

parseInt()Since the second parameter is the base value, the second parameter is used as8method. TheparseInt()The method has the following two forms.

static　int　parseInt(String　s)
static　int　parseInt(String　s,　int　radix)

To convert octal to decimal, please use2nd syntax and add the base value as8Because the octal base is8.

Integer.parseInt("25",　8)

The following is an example.

Example

public　class　Demo　{
　　　public　static　void　main(　String　args[]　)　{
　　　　　　//Convert to Decimal
　　　　　　System.out.println(Integer.parseInt("25",　8));
　　　}
}

Output Result

21