Question

我想用Apple和Lenovo取代所有的元音。这样的东西作为输出。 %20ppl%20, L%20n%20v%20 这是我的代码

String[] dalek = new String[]{"Apple","Lenovo"};
String[] wy = new String[]{"a","e","i","o","u"};

for (int i = 0 ; i < dalek.length; i++ )
String wyx = wy[i];

dalek[i] = dalek[i].replace(wyx,"%20");

System.out.println(Arrays.toString(dalek));

Answer 1

你的循环没有大括号。

这意味着只有String wyx = wy[i];将在循环中执行，而不是其余的。

这是一个更优雅的解决方案：

String[] dalek = new String[]{"Apple","Lenovo"};
String[] replaced = new String[dalek.length];
for (int i = 0; i < dalek.length; i++) {
    // assigning repalced[i] 
    //            | with dalek at index i
    //            |                      | case insensitive    
    //            |                      |   | vowels class (add "y" if necessary)
    //            |                      |   |         | with URL-encoded space
    replaced[i] = dalek[i].replaceAll("(?i)[aeiou]", "%20");
}
System.out.println(Arrays.toString(replaced));

<强>输出

[%20ppl%20, L%20n%20v%20]

Answer 2

这应该有效：

String[] dalek = new String[]{"Apple","Lenovo"};
String[] wy = new String[]{"a","e","i","o","u"};

for (int i = 0 ; i < dalek.length; i++ ) {
   for (int j=0; j<wy.length;j++){
      String wyx = wy[j];
      dalek[i] = dalek[i].toLowerCase().replace(wyx,"%20");
   }
}

System.out.println(Arrays.toString(dalek));

Answer 3

这可能会有所帮助

String[] dalek = new String[] { "Apple", "Lenovo" };
String[] wy = new String[] { "a", "e", "i", "o", "u" };

for (int i = 0; i < dalek.length; i++) {
    for (int j = 0; j < wy.length; j++) {
        String wyx = wy[j];
        dalek[i] = dalek[i].replaceAll("(?i)[" + wyx + "]", "%20");
    }
}
System.out.println(Arrays.toString(dalek));

Answer 4

    String[] dalek = new String[]{"Apple","Lenovo"};
    String[] wy = new String[]{"a","e","i","o","u"};

    for (int i = 0 ; i < dalek.length; i++ )
    {
        for(int j=0;j<wy.length;j++)
        {
            dalek[i] = dalek[i].replaceAll("(?i)"+wy[j], "%20");
        }
    }

    System.out.println(Arrays.toString(dalek));

这有效

Java - 将String数组替换为另一个String数组

4 个答案: