如何将任何对象转换为字符串? [英] How to convert any Object to String?

问题描述

这是我的代码:

for (String toEmail : toEmailList)          
{
    Log.i("GMail","toEmail: "+toEmail);
    emailMessage.addRecipient(Message.RecipientType.TO, new InternetAddress(toEmail));      
}

请给我一些建议.

推荐答案

要将任何对象转换为字符串，Java中有几种方法

To convert any object to string there are several methods in Java

String convertedToString = String.valueOf(Object);  //method 1

String convertedToString = "" + Object;   //method 2

String convertedToString = Object.toString();  //method 3

我希望第一个和第三个

编辑
如果使用kotlin(官方android语言)

EDIT
If working in kotlin, the official android language

val number: Int = 12345
String convertAndAppendToString = "number = $number"   //method 1

String convertObjectMemberToString = "number = ${Object.number}" //method 2

String convertedToString = Object.toString()  //method 3

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