Java Error Messages and Solutions

It's a very common runtime error message or exception we face when we use array wrongly. Very specifically this exception is thrown to ...

'array dimension missing' is shown when the array size is not specified while allocating memory for the array or creating an array. ...

You may see this error for writing wrong expression to initialize an array. See the code below: int data={42,15,27,20,19}; If you compile...

1. Sometimes we may get the following error message in an 'if' (selection) structure. incompatible types found : int required: bo...

public class Person extends Employee { private String firstName; private String lastName; public Person(String firstName,String lastName...

You see this error message because of any one of the followings: 1. You misspelled the keyword class (fully lower case) or you did not wri...

Very simple error ‘package system does not exist’- most probably you have used ‘err’ or ‘in’ or ‘out’ field of the ‘System’ class of ‘java....

If you try to access a non static member of a class from a static context, you will see ‘non-static method … cannot be referenced from a sta...

If a method is defined inside another method we may see ‘illegal start of expression’ error message. Remember that, we cannot define a metho...

This error message is shown when the statements are not written in proper place. Most often, mistakenly, we may write the processing task (f...