-
/*Check if string contains valid number example.This example shows how to check if string contains valid numberor not using parseDouble and parseInteger methods ofDouble and Integer wrapper classes.*/
public class CheckValidNumberExample {
public static void main(String[] args) {
String[] str = new String[]{“10.20”, “123456”, “12.invalid”};
for(int i=0 ; i < str.length ; i ++){
if( str[i].indexOf(“.”) > 0 ){
try{/** To check if the number is valid decimal number, use* double parseDouble(String str) method of* Double wrapper class.** This method throws NumberFormatException if the* argument string is not a valid decimal number.*/Double.parseDouble(str[i]);System.out.println(str[i] + ” is a valid decimal number”);}catch(NumberFormatException nme){System.out.println(str[i] + ” is not a valid decimal number”);}
}else{try{/** To check if the number is valid integer number, use* int parseInt(String str) method of* Integer wrapper class.** This method throws NumberFormatException if the* argument string is not a valid integer number.*/
Integer.parseInt(str[i]);System.out.println(str[i] + ” is valid integer number”);}catch(NumberFormatException nme){System.out.println(str[i] + ” is not a valid integer number”);}}}
}}
/*Output would be10.20 is a valid decimal number123456 is valid integer number12.invalid is not a valid decimal number*/
Friday 13 April 2018
Popular Posts
-
This textbook grew out of notes for the ECE143 Programming for Data Analysis class that the author has been teaching at University of Cali...
-
# importing the module import pywhatkit # using Exception Handling to avoid unprecedented errors try: # sending message to receiver using ...
-
Why Take a Meta Data Analyst Professional Certificate? Collect, clean, sort, evaluate, and visualize data Apply the Obtain, Sort, Explore...
-
Code: a = 'A' print(int(a, 16)) Solution and Explanation: Let's break it down step by step: a = 'A': This line assign...
-
Code: days = ("Mon", "Tue", "Wed") print(days[-1:-2]) Solution and Explanation: In Python, days = ("Mo...
-
Code: def selection_sort(arr): n = len(arr) for i in range(n): min_idx = i for j in range(i+1, n): if ...
-
Code: x = {"a": 1, "b": 2} y = {"b": 3, "c": 4} z = {**x, **y} Solution and Explanation: This code...
-
Code: x = {"name": "John", "age": 30} y = x.copy() x["name"] = "Jane" print(y["name...
-
What you'll learn Define Generative AI Explain how Generative AI works Describe Generative AI Model Types Describe Generative AI Appli...
-
Code: x = [1, 2, 3] y = x[:-1] x[-1] = 4 print(y) Solution and Explanation: Let's break down what happens step by step: x = [1, 2, 3]...
Categories
AI
(27)
Android
(24)
AngularJS
(1)
Assembly Language
(2)
aws
(17)
Azure
(7)
BI
(10)
book
(4)
Books
(114)
C
(77)
C#
(12)
C++
(82)
Course
(60)
Coursera
(176)
coursewra
(1)
Cybersecurity
(22)
data management
(11)
Data Science
(89)
Data Strucures
(6)
Deep Learning
(9)
Django
(6)
Downloads
(3)
edx
(2)
Engineering
(14)
Excel
(13)
Factorial
(1)
Finance
(5)
flutter
(1)
FPL
(17)
Google
(19)
Hadoop
(3)
HTML&CSS
(46)
IBM
(25)
IoT
(1)
IS
(25)
Java
(92)
Leet Code
(4)
Machine Learning
(44)
Meta
(18)
MICHIGAN
(5)
microsoft
(3)
Pandas
(3)
PHP
(20)
Projects
(29)
Python
(745)
Python Coding Challenge
(198)
Questions
(2)
R
(70)
React
(6)
Scripting
(1)
security
(3)
Selenium Webdriver
(2)
Software
(17)
SQL
(40)
UX Research
(1)
web application
(8)
0 Comments:
Post a Comment