-
/*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
-
Learn to Program and Analyze Data with Python. Develop programs to gather, clean, analyze, and visualize data. Specialization - 5 course s...
-
Code: class MyClass: x = 1 p1 = MyClass() p2 = MyClass() p1.x = 2 print(p2.x) Solution and Explanation: Let's break down the code:...
-
While Excel remains ubiquitous in the business world, recent Microsoft feedback forums are full of requests to include Python as an Excel ...
-
Code: class MyClass: def __init__(self, x): self.x = x def __call__(self, y): return self.x * y p1 = MyClass(2) pr...
-
What you'll learn Learn how to play faster and looser and more casual with code, skimming and copying code from the Internet. Discuss ...
-
1. What is the output of following Python code? a = 'a' print(int(a, 16)) Solution and Explanation: Let's break down the expr...
-
Code: s = 'clcoding' print(s[-6:-1:2]) Solution and Explanation: Let's break down the code s = 'clcoding' and print(s...
-
Code: class MyClass: def __init__(self, x): self.x = x p1 = MyClass(1) p2 = MyClass(2) p1.x = p2.x del p2.x print(p1.x) Soluti...
-
Code: import matplotlib.pyplot as plt import numpy as np x = np.linspace(0, 10, 100) y1 = np.sin(x) y2 = np.cos(x) plt.stackplot(x, y1, y2...
-
Code: class Doubler(int): def __mul__(self, other): return super().__mul__(other + 3) d = Doubler(3) result = d * 5 print(resu...
Categories
AI
(27)
Android
(24)
AngularJS
(1)
Assembly Language
(2)
aws
(17)
Azure
(7)
BI
(10)
book
(4)
Books
(117)
C
(77)
C#
(12)
C++
(82)
Course
(62)
Coursera
(179)
coursewra
(1)
Cybersecurity
(22)
data management
(11)
Data Science
(95)
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
(748)
Python Coding Challenge
(221)
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