java isolate the numbers from string
// string contains numbers
String str = "The price of the book is $49";
// extract digits only from strings
String numberOnly = str.replaceAll("[^0-9]", "");
// print the digitts
System.out.println(numberOnly);how to extract digits from a number in java
// Java program to Extract Digits from A Given Integer
// Printing the last digit of the number
while (number > 0) {
// Finding the remainder (Last Digit)
int remainder = number % 10;
// Printing the remainder/current last digit
System.out.println(remainder);
// Removing the last digit/current last digit
number = number / 10;
}Copyright © 2021 Codeinu
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