^ in java does not mean to raise to a power. It means XOR. You can use java's Math.pow(). And you might want to consider using double ... ... <看更多>

An attempt to define the Java power function (Math.pow()) without using any Java defined library or special operator. - GitHub - smasuku/Power: An attempt ... ... <看更多>

Since Java 7, you should use try-with-resources on your Scanner for safe and ... You may want to consider using a faster mathematical approach to test if ... ... <看更多>