如何将int转换为String？ [重复]

This question already has an answer here:

这个问题在这里已有答案:

How do I convert from int to String? 19 answers

如何从int转换为String? 19个答案

I have an int variable and when I am setting this variable as an Android TextView's text it's throwing an error, maybe because it's an Int. I have checked but couldn't find a toString function for the int. So how can I do that?

我有一个int变量,当我将此变量设置为Android TextView的文本时,它会抛出一个错误,可能是因为它是一个Int。我已经检查但是找不到int的toString函数。那我该怎么办呢?

int sdRate=5;
//text_Rate is a TextView
text_Rate.setText(sdRate); //gives error

6 个解决方案

#1

Use String.valueOf():

int sdRate=5;
//text_Rate is a TextView
text_Rate.setText(String.valueOf(sdRate)); //no more errors

#2

Use the Integer class' static toString() method.

使用Integer类的static toString()方法。

int sdRate=5;
text_Rate.setText(Integer.toString(sdRate));

#3

You can use

您可以使用

text_Rate.setText(""+sdRate);

#4

Did you try:

你试过了吗:

text_Rate.setText(String.valueOf(sdRate));

#5

You have two options:

你有两个选择:

1) Using String.valueOf() method:

1)使用String.valueOf()方法:

int sdRate=5;
text_Rate.setText(String.valueOf(sdRate));  //faster!, recommended! :)

2) adding an empty string:

2)添加一个空字符串:

int sdRate=5;
text_Rate.setText("" + sdRate));

Casting is not an option, will throw a ClassCastException

Casting不是一个选项,会抛出ClassCastException

int sdRate=5;
text_Rate.setText(String.valueOf((String)sdRate)); //EXCEPTION!

#6

may be you should try like this

也许你应该这样试试

int sdRate=5;
//text_Rate is a TextView
text_Rate.setText(sdRate+""); //gives error

#1