在java android中替换字符'@'

Question

我想从字符串中将字符'@'和'.'替换为'_'。我可以将char '.'替换为'_'，但无法替换char '@'。

public String getemailparsing(String email){
        String result="";
        char keong = 64;
        for(int i=0; i<email.length();i++){
            if(email.charAt(i) == '@' ){
                result = email.replace('@', '_'); //this is NOT working
            }else if(email.charAt(i) == '.'){
                result = email.replace('.', '_'); //this one is working
            }
        }
        return result;
    }

任何想要取代char＆＃39; @＆＃39; ...

Answer 1

public String getEmailParsing(String email){
    return email.replaceAll("[@.]+","_");
}

Answer 2

应用如下代码所示的小改动。你会得到你想要的输出。

public String getemailparsing(String email) {
        String result = email;

        if (email.contains("@")) {
            result = result.replace('@', '_'); 
        }
        if (email.contains(".")) {
            result = result.replace('.', '_'); 
        }
        return result;
    }