15问答网 > 用Java怎样把String 转换为double

用Java怎样把String 转换为double

2025-03-13 21:57:41
推荐回答（3个）
回答1：

可以使用如下几种方法：
1、Double.parseDouble("3.14159");
2、Double.valueOf("3.14159")；
3、double d = new Double("3.14159");

回答2：

Double.parseDouble(args )用这个方法里面是传进去的String 参数

回答3：

String str = "123";
double d = Double.parseDouble(str);
System.out.println(d);

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