示例1：将小数转换为八进制的程序
public class DecimalOctal {
public static void main(String[] args) {
int decimal = 78;
int octal = convertDecimalToOctal(decimal);
System.out.printf("%d in decimal = %d in octal", decimal, octal);
}
public static int convertDecimalToOctal(int decimal)
{
int octalNumber = 0, i = 1;
while (decimal != 0)
{
octalNumber += (decimal % 8) * i;
decimal /= 8;
i *= 10;
}
return octalNumber;
}
}输出
78 in decimal = 116 in octal此转换发生为：
8 | 78
8 | 9 -- 6
8 | 1 -- 1
8 | 0 -- 1
(116)
示例2：将八进制转换为十进制的程序
public class OctalDecimal {
public static void main(String[] args) {
int octal = 116;
int decimal = convertOctalToDecimal(octal);
System.out.printf("%d in octal = %d in decimal", octal, decimal);
}
public static int convertOctalToDecimal(int octal)
{
int decimalNumber = 0, i = 0;
while(octal != 0)
{
decimalNumber += (octal % 10) * Math.pow(8, i);
++i;
octal/=10;
}
return decimalNumber;
}
}输出
116 in octal = 78 in decimal此转换发生为：
1 * 82 + 1 * 81 + 6 * 80 = 78