java删除字符串中指定的字符

啊哈哈^ω^

于 2020-06-04 21:23:37 发布

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文章标签： java

本文链接：https://blog.youkuaiyun.com/q1606464914/article/details/106558481

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@Test
public void mian1() {
    String oldStr = "1,2,3,4,5,6,7,8,9";
    String d="8";
    String[] arr = oldStr.split(",");
    ArrayList<String> m = new ArrayList<>();
    for (int i = 0; i < arr.length; i++) {//add进ArrayList数组
        m.add(arr[i].trim());
    }
    for (int i = 0; i < m.size(); i++) {//用ArrayList的remove功能，移除指定字符
        if (d.equals(m.get(i))) {
            m.remove(i);
        }
    }
    String s1 = m.toString();
    String s2 = s1.substring(1, s1.length() - 1) + ",";//去除首尾[]符号，并加上”，“号
    String s = s2.replaceAll(" ", "");
    System.out.println(s1);
    System.out.println(s2);
    System.out.println(s+);

}