String to Double conversion in java

0 votes

How can I convert a String such as "123.456" to a double in Java?

Apr 13, 2018 in Java by developer_1
• 3,280 points
38 views

3 answers to this question.

Your answer

Your name to display (optional):
Privacy: Your email address will only be used for sending these notifications.
0 votes
You can do it in the following way :
String s = "10.1";
Double d = Double.parseDouble(s);
The parseDouble method will achieve the desired effect, and so will the Double.valueOf() method.
answered Apr 13, 2018 by Rishabh
• 3,520 points
0 votes
If you have problems in parsing string to decimal values, you need to replace "," in the number to "."
String number = "123,321";
double value = Double.parseDouble( number.replace(",",".") );
answered Jul 18, 2018 by Daisy
• 8,040 points
0 votes
Double temp = Double.valueOf(str);
number = temp.doubleValue();
answered Sep 10, 2018 by Sushmita
• 6,840 points

Related Questions In Java

0 votes
3 answers

How to reverse a string in java?

public static String reverse(String s) { ...READ MORE

answered Aug 16, 2018 in Java by samarth295
• 2,190 points
61 views
0 votes
1 answer

How can I convert an 'ArrayList<String> to 'String[]' in Java

List<String> list = new ArrayList<String>(); String[] array = ...READ MORE

answered Apr 20, 2018 in Java by Daisy
• 8,040 points
96 views
+14 votes
17 answers

How can I convert String to JSON object in Java?

Hi @Daisy You can use Google gson  for more ...READ MORE

answered Feb 7 in Java by Suresh
• 700 points
57,654 views
0 votes
1 answer

How to pad string in Java?

Padding to 10 characters: String.format("%10s", "foo").replace(' ', '*'); String.format("%-10s", ...READ MORE

answered Apr 30, 2018 in Java by Rishabh
• 3,520 points
35 views
0 votes
1 answer

How can I convert a String variable to a primitive int in Java

You can convert a String to int by using a function: int ...READ MORE

answered Apr 12, 2018 in Java by sharth
• 3,310 points
56 views
0 votes
1 answer

Formatting Double Value in Java

An alternative is to use String.format: double[] arr = ...READ MORE

answered May 15, 2018 in Java by Rishabh
• 3,520 points
34 views
0 votes
1 answer

How to divide a string in two parts

String s="yourstring"; boolean flag = true; for(int i=0;i<s.length();i++) { ...READ MORE

answered Apr 13, 2018 in Java by Rishabh
• 3,520 points
36 views
0 votes
4 answers

Remove extra spaces from string in java

import java.util.regex.Matcher; import java.util.regex.Pattern; String pattern="[\\s]"; String replace=""; part="name=john age=13 year=2001"; Pattern ...READ MORE

answered Sep 10, 2018 in Java by parth295
• 4,600 points
54 views
0 votes
2 answers

Integer to String conversion in java

We can do this in 2 ways: String ...READ MORE

answered Jul 27, 2018 in Java by samarth295
• 2,190 points
55 views
0 votes
2 answers

What's the best way to check if a String represents an integer in Java?

You can also use regular expression. str.matches("-?\\d+"); It will ...READ MORE

answered Aug 9, 2018 in Java by Daisy
• 8,040 points
92 views

© 2018 Brain4ce Education Solutions Pvt. Ltd. All rights Reserved.
"PMP®","PMI®", "PMI-ACP®" and "PMBOK®" are registered marks of the Project Management Institute, Inc. MongoDB®, Mongo and the leaf logo are the registered trademarks of MongoDB, Inc.