CODEWITHSUNDEEP
javaandroid
pitu
pitu

Reputation: 820

Float to String conversion in android

i am trying simple calculation of float value but the output are not proper

Log.i("100/50", Float.toString(100/50));
Log.i("100/100", Float.toString(100/100));
Log.i("100/250", Float.toString(100/250));
Log.i("1/5", Float.toString(1/5));

logcat output

11-10 23:36:23.677: I/100/50(28562): 2.0
11-10 23:36:23.677: I/100/100(28562): 1.0
11-10 23:36:23.685: I/100/250(28562): 0.0
11-10 23:38:23.685: I/1/5(28562): 0.0

its a simple calculation of float, why its displaying such answer

Upvotes: 0

Views: 11875

Answers (4)

Sunil Kumar Sahoo
Sunil Kumar Sahoo

Reputation: 53657

You are performing division of two integers. So by default output will be in integer. Instead of that try to type cast the dividend into float e.g. (float)100/250, so the output will be in float and you will get proper result.

E.g. instead of 100/250 try (float)100/250 or 100f/250.

Upvotes: 0

Jitender Dev
Jitender Dev

Reputation: 6925

Do like this

Log.i("100/250", Float.toString(100f/250f));
Log.i("1/5", Float.toString(1f/5f));

output is

11-11 12:25:32.198: I/100/250(351): 0.4
11-11 12:25:32.208: I/1/5(351): 0.2

Float.toString takes an input floating point

public static String toString (float f)

where f is the float to convert to a string.

More information is available on Developers Website.

Upvotes: 1

Evgeniy Dorofeev
Evgeniy Dorofeev

Reputation: 136022

You need to use floats instead of ints, try Log.i("100/50", Float.toString(100f/50)); this makes Java to use float arithmetic, otherwise it does int division then converts the result to float

Upvotes: 4

Ahmad Raza
Ahmad Raza

Reputation: 2850

Use this code.

Log.i("100/50", Float.toString(100/50f)); Log.i("100/100", Float.toString(100/100f)); Log.i("100/250", Float.toString(100/250f)); Log.i("1/5", Float.toString(1/5f));

Hope it will work for you.

Upvotes: 0

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