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What are number format exceptions in Java?
This Exception happens once you associated convert a string variable in an incorrect format to a whole number (numeric format) that's not compatible with one another.
Example
public class Test { public static void main(String[] args) { int data = Integer.parseInt("hello"); } }
Output
Exception in thread "main" java.lang.NumberFormatException: For input string: "hello" at java.lang.NumberFormatException.forInputString(Unknown Source) at java.lang.Integer.parseInt(Unknown Source) at java.lang.Integer.parseInt(Unknown Source) at a6.dateAndTime.Test.main(Test.java:5)
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