float « Integer « Java Data Type Q&A





1. How can I left-pad the string representation of a float?    stackoverflow.com

I'm trying to convert a single precision floating point number into an ascii representation of the four bytes that make it (sign/exponent/mantissa). My current code is:

Integer.toString(Float.floatToRawIntBits(f),16);
Float.floatToRawIntBits makes an integer using the same ...

2. How to convert float to int with Java    stackoverflow.com

I used the following line to convert float to int, but not as accurate as I'd like :

 float a=8.61f;
 int b;

  b=(int)a;

The result is : 8 [ It should ...

3. Why do floats having trailing .0 when it is exactly an integer?    stackoverflow.com

Read this question carefully because I am not asking how to get rid of trailing zeros, that's easy. What I am asking is why does 123d become "123.0"? A IEEE 64-bit float can ...

4. Java convert float to integer    stackoverflow.com

I want to do an operation like this : if the given float numbers are like 1.0 , 2.0 , 3.0 , I want to save them to database as integer ...

5. Loss of precision - int -> float or double    stackoverflow.com

I have an exam question i am revising for and the question is for 4 marks "In java we can assign a int to a double or a float". Will this ...

6. Beginners Java Question (int, float)    stackoverflow.com

int cinema,dvd,pc,total;
double fractionCinema, fractionOther;
fractionCinema=(cinema/total)*100; //percent cinema
So when I run code to display fractionCinema, it just gives me zeros. If I change all the ints to doubles, then it gives me what ...

7. How can I convert integer into float in Java?    stackoverflow.com

I have two integers x and y. I need to calculate x/y and as outcome I would like to get float. For example as an outcome of 3/2 I would like ...

8. Java: Converting ints & doubles to floats?    stackoverflow.com

Working on my assignment for Java and I have created a class called Triangle. This has 3 variables, side1, side2 and side3. My constructor method takes 3 float values and assigns ...

9. Java: Bytes to floats / ints    stackoverflow.com

I have a byte array sent via UDP from x-plane. The bytes (4) are all floats or integers… I tried to cast them to floats but no luck so far… Example array: ...





10. Floating point arithmetics restricted to integers    stackoverflow.com

I use doubles for a uniform implementation of some arithmetic calculations. These calculations may be actually applied to integers too, but there are no C++-like templates in Java and I don't ...

11. How to check whether input value is integer or float?    stackoverflow.com

How to check whether input value is integer or float? Suppose 312/100=3.12,Here i need check whether 3.12 is float or integer. Regards, chaitu

12. Coordinates for drawing: Use floating point vs. integer?    stackoverflow.com

Are there any advantages of using floating-point coordinates vs. integer coordinates when drawing on a Graphics2D for use on a screen display?

13. Graphics2D: Should I use the int or float versions?    stackoverflow.com

Some of the Graphics2D methods, such as drawString, have versions that take coordinates as int or float. Are there any reasons to choose one over the other? Likewise, should I use the ...

14. can I use float[] to hold ints?    stackoverflow.com

we have one class which has one float[] and one int[]. Sometimes the user of that class needs put float valuse and sometimes int values, but will not be both for ...

15. Is there an efficient way to check for an approximate floating point equality in C++?    stackoverflow.com

Possible Duplicate:
Most effective way for float and double comparison
I have a function that calculates distance and then that distance is then later compared to ...

16. What happens when converting double (or floats) to ints?    stackoverflow.com

I'm practicing some simple 2D game programming, and came up with a theory that during animation (the actual change in a image position is best calculated with floating point numbers). I ...





17. converting a float to an integer?    coderanch.com

18. Usage of :- int comapareTo(float f)    coderanch.com

To compare primitives, you can use less-than and greater-than signs. To compare the values that the wrapper classes contain, you need to use compareTo(). public class FloatTest { static Float f1; static Float f2; static Float f3; public static void main( String[] args ) { f1 = new Float( 4.5 ); f2 = new Float( 8.1 ); f3 = new Float( ...

19. Float to Int(VERY URGENT)    coderanch.com

You perform a "cast" on it, like this: float x; int y; y = (int)x; Note that you could possibly lose information doing this, because a float is bigger than an int... In fact, if "x" in the example above was originally 100.3D, after the cast it becomes just 100 without the fractional portion. [This message has been edited by John ...

20. ints, floats and doubles    coderanch.com

Surely I can answer this without even referring to Java? A floating point number is wider and more precise than an integer. I.e., 1.0005 is not the same as 1. A "double" (64 bit floating point) is wider than a "float" (32 bit floating point) which is wider than an "int" (32 bit integer). Perhaps I'm wrong in assuming this is ...

21. Float and Integer(URGENT)    coderanch.com

Hi, I have following: int maxFileSize = 4000, int temp can be any int value. Now I have to detect value of int numOfSegments depends on the what temp/maxFileSize returns. So, let's say, if temp/maxFileSize is 4000/4000, or 8000/4000 or 12000/4, then I can simply detect value of numOfSegments 0 or 1 or 2 respectively. BUT if temp/maxFileSize is 5000/4000 then ...

23. Declaring float & int.    coderanch.com

. In the following lines of code. 1) float f=1/3; 2) int i=1/3; Line one returns a float and so a float value can be assigned to a variable of type float. But in line 2 a float value gets directly assigned to an int wont there be any possible loss of precision. Why java compiler dint report an error. Can ...

24. How to distinguish int , float , long and double?    coderanch.com

The soul is dyed the color of its thoughts. Think only on those things that are in line with your principles and can bear the light of day. The content of your character is your choice. Day by day, what you do is who you become. Your integrity is your destiny - it is the light that guides your way. - ...

25. a program to check input is integer, float, or NAN    coderanch.com

Hello, I am working on a program that inputs a data into a textfield and checks if the number is integer, float or Not a number. i have gotten the layout. But i have a rough idea that if it is an integer there would be no decimal points and decimal point for a float data and i fuser enters characters ...

27. how to convert float to int?    coderanch.com

Originally posted by Anto telvin Mathew: hi all how to convert float to int manually using paper You already asked how to manually convert between floating point numbers which requires you to understand the IEEE format. You already asked how to convert amoung the whole numbers, which requires you to understand twos complements. There is no black magic here. Once you ...

28. float to int    coderanch.com

Hi, I need to work with values that represent money, so I want to divide the input value by 100 and store it in int. then do the calculations and result multiply by 100. (so I don't have to work with big decimal) I just want to ask about the best way to parse float (initial value) to int 1: float ...

30. Determine If Value is Integer or Float    coderanch.com

I am trying to get my code to figure out if a value is an Integer or Float to descide how to display but the folowing code returns every thing as Float even when many values are 1.0, 3.0 etc. HSSFCell qtyMatrixCell = seatassyRow[maRow+rowAdjust].createCell((short)maColumnCounter); HSSFRichTextString matrixQty = new HSSFRichTextString(mqArray[2]); if(!matrixQty.toString().equals("0") && !matrixQty.toString().equals("0.0") && !matrixQty.toString().equals("0.00")){ try{ if(mqArray[2] == String.valueOf((int)Float.parseFloat(mqArray[2]))){ System.out.println("IsInteger: "+mqArray[2]); qtyMatrixCell.setCellValue((int)Float.parseFloat(mqArray[2])); ...

31. Graphics with floating points instead of Integers    java-forums.org

I think i forgot to actually post this last time but anyways my question is I want to know if there is a way to use some kind of graphics where I don't have to use integers, for example g.fillOval(int w, int h, int x, int y); I want to know if there is someway to be able to use say ...

32. int, float, double BUT String    java-forums.org

Data types are not reserved word. Primitive data types are. That is a key distinction. String is just a class, the reason why you associate it with the other primitives is because it is so important in computer programming. If you are familiar with c, they use character arrays to represent a string. In actuality(in java) a string is a character ...

33. regarding int and float    java-forums.org

36. how to explore the class int ,float,String ,etc ?    forums.oracle.com

int, float and the other primitive types do not have classes (well, there exists in the runtime a class object for each, but you can't ever see it). As for String etc, with your JDK download, you got a file called src.zip. It's all in there I wouldn't get too excited, though. And I certainly wouldn't advise looking at the JDK ...

37. Calculation speed: between int and float    forums.oracle.com

39. Integer and Float Data Types -Puzzeling Question    forums.oracle.com

I am studying Java from a book and I came accross a question which has me puzzelled. If A, B, & C are Integer Data Types and X is a Float data type, which of the following statements must be incorrect and why? (a) A=X (b) X=A%B (c) A=B/C (d) X=X%A I suspect the answer is (a) A=X because an integer ...

40. floats and ints!    forums.oracle.com

This may be common knowledge but I haven't been able to find a decent answer from the web or by even using my brain! But check this out: int integer = 100; float floating = 1.05F; float result = integer * floating; result turns out to be 104.999999???? Even if i cast the integer to a float: int integer = 100; ...

41. Use of Float and equality    forums.oracle.com

Float value2 = new Float(2.2); Float value3 = new Float(3.9); Float value4 = new Float(8.2); Float value5 = new Float(15); maxValue = value2 + value3 + value4 + value5; System.out.println("Max value is -> " + maxValue); if (inputValue.floatValue() < (maxValue / 2)) { System.out.println("Condition 1--> " + (value2 + value3)); if ((Float) (value2 + value3) == inputValue) { setValue = value2 ...

42. Cast Float into Integer?    forums.oracle.com

43. a have a float and i would like to be an int because of one method    forums.oracle.com

let be more detailed... i would like to do this : int i= (int) k ,k= float How can i do this without using convertion? there is method of that? Another problem that i have is that my program takes an argument from the command line. i take this argument into the constructor and then i am using in all my ...

44. I would like to convert a float to integer..........    forums.oracle.com

First of all, avoid my previous question. Secondly, i would like to have an output in my program float numbers but until one decimal . for example 23.5 56.8 23.8 How can I do that.I know there is a rounding method but a number like 23.546935609 it will be 24. I do not want that. For understanding my program ,it is ...

45. Extending Integer, Float etc...?    forums.oracle.com