java - 将字符串转换为用非数字字符分割的 double 组

Question

我知道如何用空格等​​特殊字符分割字符串:

String numbers = "22 14 10 8 70";
int [] n1 = new int [numbers.length()];
for(int n = 0; n < numbers.length(); n++) {
    n1[n] = Integer.parseInt(numbers.split(" ")[n]);
}

但我想用任何非数字(也包括负号和浮点)类型的字符拆分字符串；就像这个字符串:

String numbers = "22+14/10*8-70";

Answer 1

尝试这个算法Shunting-yard algorithm .

The shunting-yard algorithm is a method for parsing mathematical expressions specified in infix notation.