java:如果知道了方法，怎么添加例子

Question

public class Calculator {
    //sum function, return the sum of two given parameters
    public int sum(int numA, int numB){
        return numA + numB;
    }

    //subtraction function, return the subtraction of two given parameters
    public int sub(int numA, int numB){
        return numA - numB;
    }

    //multiplication function, return the multiplication of two given parameters
    public float multiply(float numA, float numB){
        return numA * numB;
    }

    //division function, return the division of two given parameters
    public float division(float numA, float numB){
       
        return numA / numB;
    }
}

如果知道了以上方法，我想输入，比如num的三次方，我该怎么继续写

Answer 1

public class Calculator {
    //sum function, return the sum of two given parameters
    public int sum(int numA, int numB){
        return numA + numB;
    }
 
    //subtraction function, return the subtraction of two given parameters
    public int sub(int numA, int numB){
        return numA - numB;
    }
 
    //multiplication function, return the multiplication of two given parameters
    public float multiply(float numA, float numB){
        return numA * numB;
    }
 
    //division function, return the division of two given parameters
    public float division(float numA, float numB){
       
        return numA / numB;
    }
    
    public float pow(float numA, float count){
       
        float result = 1;
        for(int i = 0; i < count; i ++) {
            result = result * numA;
        }
        return result;
    }
    
    public float pow3(float numA){
        
        return numA * numA * numA;
    }
    
}