import java.util.Arrays;

public class Basics {

//beginner

//todo: write some methods for some basic operations with arrays, like:

//-return the length of an array

//-drop the last element of an array

//-sum up all the elements of an integer array

//-check if an array contains a given element

public static void main(String[] args) {

int[] myArray = {1,2,3,4,5};

System.out.println("Input array: " + Arrays.toString(myArray));

returnLenghtOf(myArray);

dropLastElementOf(myArray);

sumOf(myArray);

int givenElement = 5;

System.out.println("The array" + (hasGivenElement(myArray, givenElement) ? " " : " not ") + "contains " + givenElement);

}

private static void returnLenghtOf(int[] input) {

System.out.println("length: " + input.length);

}

private static void dropLastElementOf(int[] input) {

int[] newArray = new int[input.length - 1];

for (int index = 0; index < newArray.length; index++) {

newArray[index] = input[index];

}

System.out.println("After drop last element: " + Arrays.toString(newArray));

}

private static void sumOf(int[] input) {

int sum = 0;

for (int index = 0; index < input.length; index++) {

sum += input[index];

}

System.out.println("Sum of all elements: " + sum);

}

private static boolean hasGivenElement(int[] input, int givenElement) {

boolean result = false;

for (int element : input) {

if (element == givenElement) {

result = true;

}

}

return result;

}

}