Question

急！急！急！。。java中如何将String类型的数据转换成long型数据???

Answer 1

用long得封装类Long.parseLong()就可以

String str = "12345";
long longValue = Long.parseLong(str);

Answer 2

String str="222";//整数
long l=Long.parseLong(str);
System.out.println(l);

Answer 3

String a=123.123
long b=Long.parseLong(a);
out.print(b);

Answer 4

parseLong()方法！字符串转为long形

Answer 5

用Long.parseLong()
如
String str = "123";
long longValue = Long.parseLong(str).longValue();