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Java Program Number to Word

In this section, we will create a Java program that converts the given number into words. For example, if the given number is 54,297 then the output should be Fifty-Four Thousand Two Hundred Ninety-Seven. Let's create a Java program for the same.

NumberToWordExample1.java

Output:

Java Program Number to Word

The number is not limited to four digits. Then what if the user enters more than 5 five digits numbers. The above program does not work for large digit numbers.

Converting Large Numbers into Words

The logic for converting the large digit numbers is quite different. Let's see the approach to convert large digits numbers.

NumberToWordExample2.java

Output:

Java Program Number to Word

Converting Very Long Numbers into Words

The logic for the conversion of very long numbers into words is different from the previous one. Before moving ahead, it is important to learn the name of large numbers. The following table describes the name of the larger numbers.

Name Short Scale
(US, English Canada, modern British, Australia, and Eastern Europe)
Long Scale
(French Canada, older British, Western & Central Europe)
Million 106 106
Milliard Not used 109
Billion 109 1012
Billiard Not used 1015
Trillion 1012 1018
Quadrillion 1015 1024
Quintillion 1018 1030
Sextillion 1021 1036
Septillion 1024 1042
Octillion 1027 1048
Nonillion 1030 1054
Decillion 1033 1060
Undecillion 1036 1066
Duodecillion 1039 1072
Tredecillion 1042 1078
Quattuordecillion 1045 1084
Quindecillion 1048 1090
Sexdecillion 1051 1096
Septendecillion 1054 10102
Octodecillion 1057 10108
Novemdecillion 1060 10114
Vigintillion 1063 10120
Centillion 10303 10600

Let's create a Java program that converts very long numbers into words.

The following Java program also converts the negative and decimal numbers into words.

NumberToWordExample3.java

Output:

0 = zero
4 = four
10 = ten
12 = twelve
100 = one hundred
108 = one hundred eight
299 = two hundred ninety-nine
1000 = one thousand
1003 = one thousand three
2040 = two thousand forty
45213 = forty-five thousand two hundred thirteen
100000 = one hundred thousand
100005 = one hundred thousand five
100010 = one hundred thousand ten
202020 = two hundred two thousand twenty
202022 = two hundred two thousand twenty-two
999999 = nine hundred ninety-nine thousand nine hundred ninety-nine
1000000 = one million
1000001 = one million one
10000000 = ten million
10000007 = ten million seven
99999999 = ninety-nine million nine hundred ninety-nine thousand nine hundred ninety-nine
9223372036854775807 = nine quintillion two hundred twenty-three quadrillion three hundred seventy-two trillion thirty-six billion eight hundred fifty-four million seven hundred seventy-five thousand eight hundred seven
-9223372036854775808 = minus nine quintillion two hundred twenty-three quadrillion three hundred seventy-two trillion thirty-six billion eight hundred fifty-four million seven hundred seventy-five thousand eight hundred eight
0001.2 = one and two tenth
3.141592 = three and one hundred forty-one thousand five hundred ninety-two millionth

Even, we can convert 100 digits long number with the help of the above program.






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