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## How do you find the number before a decimal?

The number before the decimal point is called **the whole part or integral part**, Whereas the number after the decimal point is called the fractional part. Example : 43 is a whole part and 012 is a fractional part.

## How many numbers can there be before the decimal point?

For ordinary integers, there can only be **infinitely many digits to the left** of the decimal point if the are only finitely many nonzero digits among them, in other words if there is a point to the left of which there are only zero digits.

## How do I limit the number of digits after the decimal point in Java?

Using Math.**round()**

round() method is another method to limit the decimal places in Java. If we want to round a number to 1 decimal place, then we multiply and divide the input number by 10.0 in the round() method. Similarly, for 2 decimal places, we can use 100.0, for 3 decimal places, we can use 1000.0, and so on.

## What is a decimal number called?

The numbers expressed in the decimal form are called decimal numbers or **decimals**. For example: 5.1, 4.09, 13.83, etc. … The decimal point together with the digits lying on the right of decimal point form the decimal part.

## How do you calculate 2 decimal places?

**Rounding to decimal places**

- look at the first digit after the decimal point if rounding to one decimal place or the second digit for two decimal places.
- draw a vertical line to the right of the place value digit that is required.
- look at the next digit.
- if it’s 5 or more, increase the previous digit by one.

## What is .2f in Java?

printf(“%. 2f”, val); In short, the %. 2f syntax tells **Java to return your variable ( val ) with 2 decimal places** ( . 2 ) in decimal representation of a floating-point number ( f ) from the start of the format specifier ( % ).

## How do you correct to 2 decimal places in Java?

format(**“%.** **2f”, 1.23456**); This will format the floating point number 1.23456 up-to 2 decimal places, because we have used two after decimal point in formatting instruction %. 2f, f is for floating point number, which includes both double and float data type in Java.

## How do you round to 2 decimal places in math?

Rounding off to the nearest hundredths is the same as rounding it to 2 decimal places. To round off a number to 2 decimal places, look **at the digit in the thousandths place**. If the digit in the thousandths place is greater or equal to 5, the hundredths digit is increased by one unit.