Java中的双floatValue()与示例
Double 类的 floatValue() 方法是一个内置方法,用于在类型转换后将调用对象指定的值返回为浮点数。
句法:
DoubleObject.floatValue()
返回类型:它返回一个浮点值,即 DoubleObject 的类型转换值。
示例 1:
Java
// Java Program to Implement floatValue() Method
// of Double Class
// Class
class GFG {
// Main driver method
public static void main(String[] args)
{
// Creating a Double object
Double d = new Double(23);
// Typecasting the value using
// floatValue() method of Double class
float output = d.floatValue();
// Printing the double value on console
System.out.println(output);
}
}
Java
// Java Program to Implement floatValue() Method
// of Double Class
// Class
class GFG {
// Main driver method
public static void main(String[] args)
{
// Taking a double value by
// creating object of Double class
Double d = new Double(-1023.15);
// Typecasting the value using
// floatValue() method of Double class
float output = d.floatValue();
// Printing the above double value
System.out.println(output);
}
}
输出:
示例 2:
Java
// Java Program to Implement floatValue() Method
// of Double Class
// Class
class GFG {
// Main driver method
public static void main(String[] args)
{
// Taking a double value by
// creating object of Double class
Double d = new Double(-1023.15);
// Typecasting the value using
// floatValue() method of Double class
float output = d.floatValue();
// Printing the above double value
System.out.println(output);
}
}
输出: