Error while using .equals() method on multi dimensional array java

Asked Mar 21 '15 at 11:24

Active Mar 21 '15 at 11:28

Viewed 34 times

if(NewItem.itemArray[i][3].equals(itemNO))
{ 
    for (int x = 0; x < 4; x++)
    {
        NewItem.itemArray[i][x] = null; //Change all the values in the row to null
    }

The compiler throws an exception when I try to run the program. What is wrong?

The following is the exception it shows.

Exception in thread "main" java.lang.NullPointerException
    at DeleteItem.deleteItem(DeleteItem.java:34)
    at EditItemDetails.editItem(EditItemDetails.java:25)
    at CD_Universe.editItemDetailsActions(CD_Universe.java:84)
    at CD_Universe.main(CD_Universe.java:109)

edited Mar 21 '15 at 11:28

asked Mar 21 '15 at 11:24

savidude

Post the exception trace. – Laerte Mar 21 '15 at 11:25
Did you consider the possibility that `NewItem.itemArray[i][3]` would already be null? – Eran Mar 21 '15 at 11:27
1

Also, you have terminated the `if` statement with `;` and the block below will always be executed. – Konstantin Yovkov Mar 21 '15 at 11:28
See also: http://stackoverflow.com/questions/3988788/what-is-a-stack-trace-and-how-can-i-use-it-to-debug-my-application-errors – Alexis C. Mar 21 '15 at 11:32
Use a line breakpoint in your editor and step through the code line by line and check the variables. Debug your code. – WonderWorld Mar 21 '15 at 11:32

Error while using .equals() method on multi dimensional array java

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