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I get a double value (eg. -3.1234) which contains a value in decimals (0.1234 in this case). I want to remove the value in decimal value (in this case I wanted the value -3). How do I do it? I know how to remove the decimal if the decimal only has 0, but in this case I don't have the decimal value as 0.

Anyways here is the code for that:

DecimalFormat format = new DecimalFormat(); format.setDecimalSeparatorAlwaysShown(false); Double asdf = 2.0; Double asdf2 = 2.11; Double asdf3 = 2000.11; System.out.println( format.format(asdf) ); System.out.println( format.format(asdf2) ); System.out.println( format.format(asdf3) ); /* prints-: 2 2.11 2000.11 */
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5 Answers 5

Reset to default
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If you just want to print it :

String val = String.format("%.0f", 2.11) // val == "2"

If you want to keep the double type but without decimals : 

double val = Math.floor(2.11); // val == 2.000

If you don't care about type you can cast the double into int :

int val = (int) 2.11; // val == 2 //double as object int val = myDouble.integerValue();
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You can simply use the intValue() method of Double to get the integer part.

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You can cast it to int

int i=(int)2.12 System.out.println(i); // Prints 2
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Round up decimal value & convert it into integer;

Integer intValue = Integer.valueOf((int) Math.round(doubleValue)));
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Wow, maybe you should add an "(int)" in front of Integer.valueOf, just to be sure... :)
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http://www.studytonight.com/java/type-casting-in-java check out type conversion in java

 double asdf2 = 2.11; int i = (int)asdf2; System.out.println(asdf2); System.out.println(i); Output: 2.11` 2
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