简单的 Java 堆栈添加

Question

这是我的代码

package practice;
import java.util.Stack;
public class prac {
    public static void main (String[]args){
        int K = -1;
        do{
            System.out.print("Enter the amount of positive numbers to add up: ");
            K = In.getInt();
        } while(K<0);
        int i;
        Stack sum = new Stack();
        int number;
        int totalsum;
        System.out.println("Enter " + K + " values between 1 and 100, or a 0 to to ignore the last number submitted");
        for(i = 1; i <= K; i++){
            number = In.getInt();
            if(number == 0)
                sum.pop();
            else
            sum.push(number);
            System.out.print(sum);
        }
    }
}

对Java非常陌生。只需要知道将堆栈中的所有值相加的最简单和最简单的方法。即。如果堆栈是 [1， 2， 3]，答案将是 6

Answer 1

我会声明一个名为total的变量并在您的if(number== 0)声明中：

while(!sum.isEmpty()){
  total += sum.pop();
}

您还应该修改 print 语句以打印 total 的值