java - 如何缩短使用相似代码的不同场景的算法？

Question

我开发了一个程序来求解基础物理学中的运动方程。要求解，需要 5 个可能变量中的 3 个。已知的 3 个变量有 10 种不同的组合。我编写了 10 个类似于下面两个代码块的场景

    // If we have acceleration, final velocity, and initial velocity
    if (varEntered[0] == true && varEntered[1] == true && varEntered[2] == true)
    {
        double acceleration = knownVariables[0];        //Setting acceleration
        double finalVelocity = knownVariables[1];       //Setting finalVelocity
        double initVelocity = knownVariables[2];        //Setting initVelocity

        double time = ((finalVelocity - initVelocity)/acceleration);        //Finding time using an equation
        double distance = ((finalVelocity + initVelocity)*((0.5)*time));    //Finding distance using an equation

        System.out.println("The time is " + time + " seconds");             //Printing time
        System.out.println("The distance is " + distance + " meters");      //Printing distance
    }




    //If we have distance, final velocity, initial velocity
    if (varEntered[3] == true && varEntered[1] == true && varEntered[2] == true)
    {
        //Known variables
        double distance = knownVariables[3];        //Acceleration
        double finalVelocity = knownVariables[1];   //Final Velocity
        double initVelocity = knownVariables[2];    //Initial Velocity

        // Unknown variables
        double time = (distance/((0.5)*(finalVelocity + initVelocity)));    //Time
        double acceleration = ((finalVelocity - initVelocity)/time);        //Acceleration

        System.out.println("The time is " + time + " meters/second");                               //Printing time
        System.out.println("The acceleration is " + acceleration + " meters/second^2");     //Printing distance
    }

这些看似很相似，却是不同的场景。作为编程初学者，我想知道是否可以修改我使用的算法以缩短代码。如果需要任何更多信息，我将非常乐意提供。

Answer 1

您应该定义一个接受三个数字并执行一般计算的函数。对于初学者，请尝试 this tutorial .然后您可以调用您的函数两次，每次使用不同的变量集。