package oving1;
 
public class HelloWorld {
 
	public static void main(String[] args) {
		System.out.println("Hello World!");
	}
}

package oving1;
 
public class Larger {
	public static void main(String[] args) {
		// Takes the first (0) and second (1) command line arguments and compares what number is the largest
		int i = Integer.parseInt(args[0]);
		int j = Integer.parseInt(args[1]);
		if (i >= j) {
			System.out.println(i);
		} else {
			System.out.println(j);
		}
		/*
		 * Can also be done as an inline if-else:
		 * Basically it says: If i is larger or equal to j, then print i, else print j
		 *  System.out.println(i >= j ? i : j);
		 */
	}
}

package oving1;
 
import java.util.Scanner;
 
public class Sum {
 
	public static void main(String[] args) {
		// Creates a new Scanner object to read input from the user through System.in
		Scanner sc = new Scanner(System.in);
		// Create a new integer to hold our sum
		int sum = 0;
		// Loop through the input until we reach the end of the line
		while (sc.hasNext()) {
			// Try to convert each character in the input to an integer and add it to our sum
			try {
				int n = Integer.parseInt(sc.next());
				sum += n;
			// Catch the exception that occurs if converting is impossible, print what has happened and end the program
			} catch (NumberFormatException e) {
				System.out.println(e.getMessage());
				return;
			}
		}
		// Print the sum
		System.out.println("The sum is: " + sum);
	}
}

package oving1;
 
public class ArrayMethods1 {
	/**
	 * Takes an array and an integer as parameters and returns the index of where the number is *first* found.
	 * Returns -1 if the number is not present.
	 * @param array
	 * @param num
	 * @return
	 */
	public static int indexOf (int[] array, int num) {
		int result = -1;
		// Loop through the array using a for-loop
		for (int i = 0; i < array.length; i++) {
			// Set the index and break out of the loop if we've found a match
			if (array[i] == num) {
				result = i;
				break;
			}
		}
		// Return
		return result;
	}
 
	/**
	 * Takes an array and a String-object as parameters and returns the index of the *last* occurence of the given String.
	 * Returns -1 if the String is not present.
	 * @param array
	 * @param text
	 * @return
	 */
	public static int lastIndexOf (String[] array, String text) {
		int result = -1;
		// Loop through the array using a for-loop, starting from the back
		for (int i = array.length - 1; i >= 0; i--) {
			// Compare each String and break through the loop if we find an occurence
			if (array[i].equals(text)) {
				result = i;
				break;
			}
		}
		// Return
		return result;
	}
 
	/**
	 * Takes an array of integers as the first parameter and an integer as the second.
	 * The method searches through the array starting at the index given as the second paramter and returns the index of the lowest value.
	 * @param array
	 * @param startIndex
	 * @return
	 */
	public static int indexOfSmallest (int[] array, int startIndex) {
		// Return -1 if the start index is greater than the total number of elements in the array
		if (startIndex >= array.length) return -1;
		// Set the first value
		int result = startIndex;
		// Search through the array starting at startIndex and get the index of the lowest value
		for (int i = startIndex; i < array.length; i++) {
			if (array[result] > array[i]) result = i;
		}
		// Return
		return result;
	}
}