乘以100,将double转为以分为单位的数值 使用Math.round()方法确保四舍五入的准确性 最后将结果转换为long类型 示例代码 下面的代码展示了如何将double转换为long: publicclassDoubleToLongConversion{publicstaticvoidmain(String[]args){doubleamount=123.45;// 用户输入的金额longamountInCents=convertToLong(amount);S...
When a double is cast to a long, the result will remain the same, excluding the decimal point. 3. Using Double.longValue Now, let’s explore Double’s built-in method longValue to convert a double to a long: Assert.assertEquals(9999, Double.valueOf(9999.999).longValue()); As we can...
DecimalToLong+main(args: String[])+long convertToLong(value: double)+long roundToLong(value: double) 5. 流程图 以下是小数转换为long的步骤流程图: flowchart TD A[开始] --> B{选择转换方式} B -->|直接类型转换| C[将小数强制转换为 long] B -->|四舍五入| D[Math.round()] C --> E...
long vIn = 9223372036854775807L; double vOut = (double)vIn;The most viewed convertions in Java Convert long to double in Java44439 hits Convert byte to boolean in Java39829 hits Convert boolean to byte[] in Java30080 hits Convert long to short in Java28268 hits Convert long to boolean in ...
{ public static void main(String args[]) { LongToDoubleFunction result = LongToDoubleMethodRefTest::convertLongToDouble; //方法引用 System.out.println(result.applyAsDouble(75)); System.out.println(result.applyAsDouble(60)); } static Double convertLongToDouble(long value) { return (double)...
问从double转换为long而不使用Round JavaENint 2147483648～2147483647 unsigned long 0～4294967295 long...
intintVal2=100;doubled=intVal2;这样也没有问题。但是如果是下面这样就有问题了。 longlongVal=100;//这里会报错。Type mismatch: cannot convert from long to intintintVal3=longVal; 如果非要这样转，并且转换前的数据也是能够和更小类型兼容， 就需要使用强制转换。 强制转换 强制转换， 代表着数据类型的...
static doubletoDouble(String str): Convert a String to a double, returning 0.0d if the conversion fails. static doubletoDouble(String str, double defaultValue): Convert a String to a double, returning a default value if the conversion fails. ...
注意:char类型比较特殊,char自动转换成int、long、float和 double,但byte和short不能自动转换为 char,char也不能自动转换为byte或short。 强制类型转换(显式转换) 尽管自动类型转换是很有帮助的,但并不能满足所有的编程需要。例如:当程序中需要将double型变量的值赋给一个int型变量,该如何实现呢?
Example 1: Java Program to Convert double to string using valueOf() classMain{publicstaticvoidmain(String[] args){// create double variabledoublenum1 =36.33;doublenum2 =99.99;// convert double to string// using valueOf()String str1 = String.valueOf(num1); ...