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Enhance LinearSearch with null check for value #7355

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Enhance LinearSearch with null check for value #7355

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9 changes: 6 additions & 3 deletions src/main/java/com/thealgorithms/searches/LinearSearch.java
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Original file line number Diff line number Diff line change
Expand Up @@ -14,6 +14,7 @@
package com.thealgorithms.searches;

import com.thealgorithms.devutils.searches.SearchAlgorithm;

/**
* Linear Search is a simple searching algorithm that checks
* each element of the array sequentially until the target
Expand All @@ -33,7 +34,6 @@
* @see BinarySearch
* @see SearchAlgorithm
*/

public class LinearSearch implements SearchAlgorithm {

/**
Expand All @@ -45,14 +45,17 @@ public class LinearSearch implements SearchAlgorithm {
*/
@Override
public <T extends Comparable<T>> int find(T[] array, T value) {
if (array == null || array.length == 0) {

if (array == null || array.length == 0 || value == null) {
return -1;
}

for (int i = 0; i < array.length; i++) {
if (array[i].compareTo(value) == 0) {
if (array[i] != null && array[i].compareTo(value) == 0) {
return i;
}
}

return -1;
}
}
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