sarahruthwynne
Answered

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BJP4 Self-Check 7.21: swapPairs

Write a method named swapPairs that accepts an array of strings as a parameter and switches the order of values in a pairwise fashion. Your method should switch the order of the first two values, then switch the order of the next two, switch the order of the next two, and so on.

PLEASE HELP DUE AT 11:59

Sagot :

logan200749

Answer:

public static void swapPairs(ArrayList strList)

{

 for(int i = 0; i < strList.size() - 1; i += 2)

 {

  String temp1 = strList.get(i);

  String temp2 = strList.get(i + 1);

  strList.set(i, temp2);

  strList.set(i + 1, temp1);

 }

}

Explanation:

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