string怎么转long
时间: 2023-11-28 13:06:25 浏览: 29
要将String类型转换为long类型,可以使用Long.parseLong()方法。具体语法如下:
```java
String str = "12345";
long num = Long.parseLong(str);
```
其中,str是要被转换的字符串,num是转换后的long类型变量。请注意,被转换的字符串必须表示一个有效的长整数,否则会抛出NumberFormatException异常。\[1\]
#### 引用[.reference_title]
- *1* [常用总结:String类型转long,double,float,int类型 / substring()方法](https://blog.csdn.net/weixin_44958006/article/details/111024558)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v91^control_2,239^v3^insert_chatgpt"}} ] [.reference_item]
- *2* [Java中String转Long方式及注意事项](https://blog.csdn.net/qq_43842093/article/details/123886681)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v91^control_2,239^v3^insert_chatgpt"}} ] [.reference_item]
- *3* [string和long转换](https://blog.csdn.net/xiansibao/article/details/125652264)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v91^control_2,239^v3^insert_chatgpt"}} ] [.reference_item]
[ .reference_list ]