The program is an illustration of methods
Methods are collections of named code statements, that are executed when evoked
The program written in Java, where comments are used to explain each line is as follows:
//This defines the print method
public static void print(ArrayList<Double> myArrayList){
//This iterates through the ArrayList
for(double num : myArrayList) {
//This prints every element in the list
System.out.print(num + " ");
}
System.out.println();
}
//This defines the condense method
public static void condense(ArrayList<Double> myArrayList){
//This defines a new ArrayList
ArrayList<Double> newList = new ArrayList<>();
//The following condenses the list
for(int i = 0; i < myArrayList.size(); i+=2){
newList.add(myArrayList.get(i) * myArrayList.get(i + 1));
}
//This prints every element in the list
for(double num : newList) {
System.out.print(num + " ");
}
System.out.println();
}
//Thid defines the duplicate method
public static void duplicate(ArrayList<Double> myArrayList){
ArrayList<Double> newList = new ArrayList<>();
//The following duplicates the list
for(int i = 0; i < myArrayList.size(); i++){
newList.add(myArrayList.get(i));
newList.add(myArrayList.get(i));
}
//This prints every element in the list
for(double num : newList) {
System.out.print(num + " ");
}
}
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