Chapter 6, Problem 4.1E

To round numbers to specific decimal places, use a statement like

double y = Math.floor(x * 10 + 0.5) / 10;

which rounds x to the tenths position (i.e., the first position to the right of the decimal point), or

double y = Math.floor(x * 100 + 0.5) / 100;

which rounds x to the hundredths position (i.e., the second position to the right of the decimal point). Write an application that defines four methods for rounding a number x in various ways:

1. 1. roundTolnteger(number)
2. 2. roundToTenths(number)
3. 3. roundToHundredths(number)
4. 4. roundToThousandths(number)

For each value read, your program should display the original value, the number rounded to the nearest integer, the number rounded to the nearest tenth, the number rounded to the nearest hundredth and the number rounded to the nearest thousandth.