Search wiring.org.co:

This example is for Wiring version 0024+. If you have a previous version, use the examples included with your software. If you see any errors or have comments, please let us know.

Vectors.
A vector is a growable array of elements. Like an array, it contains components that can be accessed using an integer index. However, the size of a Vector can grow or shrink as needed to accommodate adding and removing items after the Vector has been created. The class Vector includes methods for examining individual elements, comparing, searching and extracting parts.

    Vector < int > intVector;

    void setup() {
      Serial.begin(9600);
      pinMode(48, OUTPUT);  // turn ON wiring hardware LED
      digitalWrite(48, HIGH);

      for(int i=0; i<255; i++) {  // add 255 elements from 0 to 254
        intVector.addElement(i);
      }

      Serial.print("The vector's capacity is: ");
      Serial.println(intVector.capacity(), DEC);  // print the vector's capacity

      if(intVector.contains(15) == true) {  // check if contains number 15
        Serial.println("The vector contains the element 15");
      }
      Serial.print("The vector's first element is: ");
      Serial.println(intVector.firstElement(), DEC);  // print the vector's first element
      Serial.print("The vector's index for element 30 is: ");
      Serial.println(intVector.indexOf(30), DEC);  // print the vector's element at position 30
      if(intVector.isEmpty() == false) {  // check if vector has elements
        Serial.println("The vector has elements");
      }
      Serial.print("The vector's last element is: ");
      Serial.println(intVector.lastElement(), DEC);  // print the vector's last element
      Serial.print("The vector's last index of 10 is: ");
      Serial.println(intVector.lastIndexOf(10), DEC);  // print the vector's last index of 10
      Serial.print("The vector's size is: ");
      Serial.println(intVector.size(), DEC);  // print the vector's size

      if(intVector.add(255) == true) {  // add element
        Serial.print("the element was added and now the vector's last element is: ");
        Serial.println(intVector.lastElement(), DEC);  // print the vector's last element
      }

      intVector.addElement(256); // add another element
      Serial.print("now the vector's last element is: ");
      Serial.println(intVector.lastElement(), DEC);  // print the vector's last element

      intVector.insertElementAt(0, 10);  // insert 0 at index 10

      int t = intVector.elementAt(10);  // get the element at index 10
      Serial.print("t is: ");
      Serial.println(t, DEC);  // print its value

      intVector.remove(10);  // remove element at position 10
      t = intVector.get(10);  // get the element at position 10
      Serial.print("t after remove is: ");
      Serial.println(t, DEC);  // print the element at position 10

      intVector.removeElementAt(10);  // remove element at position 10
      t = intVector.get(10);  // get the element at position 10
      Serial.print("t after removeElementAt is: ");  // print the element at position 10
      Serial.println(t, DEC);

      if(intVector.removeElement(23) ==true) {  // remove element 23 from the Vector
        Serial.print("the element 23 was removed and the element value after remove is: ");
      }

      intVector.setElementAt(10, 5);  // set element at postion 5 with value 10
      t = intVector.get(5);  // get the element at position 10
      Serial.print("element at index 5 is now: ");
      Serial.println(t, DEC);  // print the element at position 10

      intVector.clear();  // clear all elements in the vector
      Serial.print("The vector's size after clear is: ");
      Serial.println(intVector.size(), DEC);  // print the vector's size
    }

    void loop() {

    }