java - 尝试生成 2 个 vector ，其中包含 10 个 0-10 之间的随机数

Question

我是新来的，我正在寻求有关此代码的帮助:

public static void main(String[] args) {
    int o;
    Vector v1 = new Vector();
    Vector v2 = new Vector();
    o = Integer.parseInt(JOptionPane.showInputDialog(null, "Welcome!\n"
            + "\n"
            + "Please select an Option: \n"
            + "1. Generate vectors A and B \n"
            + "2. Show vector's sum between elements \n"
            + "3. Sum both vectors \n"));
    switch (o) {

        case 1:
            class v1 () {
            int length = 10;
            int[] series = new int[length];
            for (int i = 1; i < length; i++) {
            series[i] = (int) (Math.random() * 10);
            }
            JOptionPane.showMessageDialog(null, series[i]);
        }
            class v2 () {
            int length = 10;
            int[] series = new int[length];
            for (int i = 1; i < length; i++) {
            series[i] = (int) (Math.random() * 10);
            }
            JOptionPane.showMessageDialog(null, series[i]);
    }
  }
}

}

问题是，我只被允许使用方法、类、数组和对象。有任何想法吗？谢谢!

Answer 1

按如下方式声明 vector :

Vector<Integer> v1 = new Vector<>();

添加值

v1.add(1);

获取值

int b = v1.get(0); // b == 1

打印 vector

System.out.println(v1);

有关更多信息，请参阅Vector 。由于您的代码中存在其他严重的语法错误，请查看 The Java Tutorials寻求帮助。