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"equals(Object obj)" should test argument type #7

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"equals(Object obj)" should test argument type #7

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4 changes: 4 additions & 0 deletions src/main/java/org/dataalgorithms/bonus/friendrecommendation/mapreduce/PairOfLongs.java
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Original file line number Diff line number Diff line change
Expand Up @@ -95,6 +95,10 @@ public void set(long left, long right) {
* otherwise
*/
public boolean equals(Object obj) {
if (obj == null)
return false;
if (this.getClass() != obj.getClass())
return false;
PairOfLongs pair = (PairOfLongs) obj;
return left == pair.getLeft() && right == pair.getRight();
}
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4 changes: 4 additions & 0 deletions src/main/java/org/dataalgorithms/chap05/mapreduce/PairOfWords.java
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Original file line number Diff line number Diff line change
Expand Up @@ -146,6 +146,10 @@ public void set(String left, String right) {
* @return <code>true</code> if <code>obj</code> is equal to this object, <code>false</code> otherwise
*/
public boolean equals(Object obj) {
if (obj == null)
return false;
if (this.getClass() != obj.getClass())
return false;
PairOfWords pair = (PairOfWords) obj;
return leftElement.equals(pair.getLeftElement())
&& rightElement.equals(pair.getRightElement());
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