Convert String to a Float
In this section, you will learn how to convert string
data into a float type data. The java.lang package provides the
method that converts string data into float and also converts it into double. The
following program helps you to convert string type data into float and double by
applying the doubleValue() method.
Description of code:
Float(String str):
This is the constructor of Float class. It constructs a float object
that represents a floating-point value. It converts the string into a float type
value and takes the following parameter.
str: This
is the string that have to be converted into a float.
doubleValue():
This method returns the double value of a float object.
Here is the code of program:
public class ConvertStringToFloat{
public static void main(String[] args) {
System.out.println("Convert string to float example!");
String str = "5";
Float f = new Float(str);
double d = f.doubleValue();
System.out.println("float value:"+f);
System.out.println("double value:"+d);
}
}
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Download this example.
Output of program:
C:\vinod\Math_package>javac ConvertStringToFloat.java
C:\vinod\Math_package>java ConvertStringToFloat
Convert string to float example!
float value:5.0
double value:5.0 |
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Current Comments
1 comments so far (post your own) View All Comments Latest 10 Comments:excellent site
Posted by viswanath on Saturday, 12.29.07 @ 16:06pm | #44133