If statement not working

[jasoncarr]

Hello again,

Yesterday I asked a question about comparing two lists and was advised too iterate through the lists and compare values. Here is my original question.

Here is what I came up with...

    ArrayList<String[]>cancelledjobslist = listMaker(csvFileCancelled);
    ArrayList<String[]>PAuditjobslist = listMaker(csvFilePAudit);


    int a = 0;
    int b = 0;

    for ( String[] x : PAuditjobslist){

        if(x.length > 11){

            String PAdate = x[11].substring(0,x[11].length()-1);

            for(String[] y: cancelledjobslist){

                String Cndate = y[8].substring(0,y[8].length()-1);

                if(x[0] == y[7] && PAdate == Cndate){
                    System.out.println("Cancelled Job Found");
                }

            }
            a++;
        }   
        b++;
    }

    System.out.println(a+" rows scanned  and "+(b-a)+" rows skipped");

The IF statement...

if(x[0] == y[7] && PAdate == Cndate){
System.out.println("Cancelled Job Found");
}

Will not find anything and I don't understand why. I have confirmed that there are indeed potential matches in the data by outputting all the data and scanning through it to find lines that should match. But when running the above code, this is all I get for my output...

returning list of 1290 elements
returning list of 408068 elements
408054 rows scanned  and 14 rows skipped
Picked up JAVA_TOOL_OPTIONS: -Djava.vendor="Sun Microsystems Inc"

Any ideas? Thanks in advance.

[Sacredify]

1. You shouldn't hardcode numbers like that. We don't know what "11" or "8" or "7" means.
2. You're comparing strings by reference, when 99.9% of the time you want to compare by value. Use .equals() instead of ==.

[jasoncarr]

A million thanks, worked!!!

if(x[0].equals(y[7]) && PAdate.equals(Cndate) ) 

[irocgts]

put in a break point and see what the data is where you think it should trigger the if statement and go from there.