Lỗi java.lang.numberformatexception for input string 0 00 là gì năm 2024

A NumberFormatException occurs in Java code when a programmer tries to convert a String into a number and the conversion fails.

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32 votes

9 answers

138k views

What is a NumberFormatException and how can I fix it?

Error Message: Exception in thread "main" java.lang.NumberFormatException: For input string: "Ace of Clubs" at java.lang.NumberFormatException.forInputString[NumberFormatException.java:65] at ...

asked Oct 4, 2016 at 10:31

How can I prevent java.lang.NumberFormatException: For input string: "N/A"?

While running my code I am getting a NumberFormatException: java.lang.NumberFormatException: For input string: "N/A" at java.lang.NumberFormatException.forInputString[Unknown Source] at java....

1,261

asked Sep 10, 2013 at 6:17

java.lang.NumberFormatException: Invalid int: "" in android

I already know what is causing this error, I just do not know how to handle the case when a user doesn't enter anything into the dialogue box, then hit the button which parses the string into an int. ...

2,648

asked May 24, 2013 at 1:33

What is the proper way to handle a NumberFormatException when it is expected?

I'm running into this situation where I need to parse a String into an int and I don't know what to do with the NumberFormatException. The compiler doesn't complain when I don't catch it, but I just ...

32.5k

asked Dec 10, 2010 at 15:01

How to avoid Number Format Exception in java? [duplicate]

In my day to day web application development there are many instances where we need to take some number inputs from the user. Then pass on this number input to may be service or DAO layer of the ...

asked Mar 31, 2011 at 12:03

Converting 32-bit binary string with Integer.parseInt fails

Why does this part of code fail: Integer.parseInt["11000000000000000000000000000000",2]; Exception in thread "main" java.lang.NumberFormatException: For input string: "...

asked Jan 17, 2012 at 2:25

Double value to round up in Java

I have a double value = 1.068879335 i want to round it up with only two decimal values like 1.07. I tried like this DecimalFormat df=new DecimalFormat["0.00"]; String formate = df.format[value]; ...

8,201

asked Jan 25, 2011 at 17:23

parseDouble in Java results to NumberFormatException

I am trying to load info from a properties file and i have the following code: anInt = Integer.parseInt[prop.getProperty["anInt"]]; aDouble = Double.parseDouble[prop.getProperty["aDouble"]]; and ...

2,923

asked Nov 27, 2011 at 13:42

Integer.parseInt[String str] java.lang.NumberFormatException: Errors [duplicate]

I keep getting number format expectations, even though I'm trimming the strings and they don't contain non numerical characters bizarrely it works for some numbers and not others. Below is an example ...

asked Aug 6, 2015 at 4:25

Convert hex color value [

ffffff ] to integer value

I am receiving hex color values from a server [in this form,

xxxxxx , example

000000 for black] How do I convert this to an integer value? I tried doing Integer.valueOf["0x" + passedColor....

43.2k

asked Aug 4, 2011 at 1:00

Why do Double.parseDouble[null] and Integer.parseInt[null] throw different exceptions?

Why do Double.parseDouble[null] and Integer.parseInt[null] throw different exceptions? Is this a historical accident or intentional? The documentation clearly states two types of exceptions for ...

1,775

asked May 1, 2013 at 19:16

10 votes

5 answers

112k views

java.lang.NumberFormatException: null i

Here i come up with problem while performing some operation like update,delete and insert but its return some null value with exception kindly some one could look at the code if its wrong: Error: ...

asked May 6, 2014 at 11:14

NumberFormatException while parsing large numbers?

I know this probably isn't the most efficient way of coding this but it's what I have so far and it works up until the numbers get really big. The code should read 2 numbers from a file for example "...

asked Mar 4, 2014 at 6:13

What are the limits of BigDecimal and BigInteger? [duplicate]

I was multiplying very two huge BigIntegervalues in a program. It failed. What are the limits of BigInteger and BigDecimal ?

1,061

asked Jul 30, 2013 at 11:36

1 vote

7 answers

7k views

Getting a NumberFormatException from a numerical EditText field

I'm trying to create a for-loop to add views to a layout. The for-loop is working fine [I tried it with initialized variables] but I need to get an integer from an EditText. I used a try-catch and ...