Java how to extract decimal vqalue from float in android studio

Java how to extract decimal vqalue from float in android studio

To extract the decimal value from a float in Android Studio, you can use the float data type's remainder() method. This method returns the remainder of the division of one float by another.

Here's an example of how to extract the decimal value from a float in Android Studio:

float value = 3.14159f;
float integerPart = (int) value;
float decimalPart = value - integerPart;

System.out.println("Integer part: " + integerPart);
System.out.println("Decimal part: " + decimalPart);
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In the above example, the integerPart variable is assigned the integer value of value by casting it to int. The decimalPart variable is calculated by subtracting the integerPart from value.

This method works because the remainder of the division of a float by an integer is the decimal part of the float.

Alternatively, you can use the DecimalFormat class to format the float and extract the decimal value as a string. Here's an example of how to use the DecimalFormat class to extract the decimal value from a float:

float value = 3.14159f;
DecimalFormat df = new DecimalFormat("#.#####");
String decimalString = df.format(value);
float decimalPart = Float.parseFloat(decimalString);

System.out.println("Decimal part: " + decimalPart);

In the above example, the DecimalFormat object is used to format the value float as a string with a specific number of decimal places. The parseFloat() method is then used to convert the string back to a float. This method allows you to control the number of decimal places in the decimal part of the float.

Created Time:2017-11-03 22:21:06  Author:lautturi