Searching arrays

**camaleonx13** · September 30th, 2013, 10:32 PM

I need to find elements from an array that are unique.
The program is supposed to identify the duplicate elements as they are being entered and not count them.
For example: if I enter 10 then 20 then 15 then 10 then 20. The program is supposed to identify only the unique numbers in this case 15
I tried to use a linear search method like the one below but this will only compare the elements against one key

public class LinearSearch{
public static in linearSearch(int[] list, int key){
for (int i = 0; i < list.lenght; i++){
if(key == list [i])
return i;
}
return -1:
}
}

**Junky** · October 1st, 2013, 01:59 AM

You only need to compare the elements against one key. By that I mean you pseudocode should be along the lines of

    enter value
    if value is not in array { // call a method that checks and returns a boolean
        enter value into array
    }
}
 
boolean method
    for each element in array
        if element equals new value
            return ....
        }
    }
    return ....
}

**GregBrannon** · October 1st, 2013, 04:43 AM

Please read the Announcement at the top of the sub-Forums to learn how to post your code in code/formatting tags and how to ask questions that get attention and receive helpful answers.

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