1. Find and print the largest and smallest numbers.

2. Find the largest number in the half of all numbers stored.

Using this java code below

import java.util.ArrayList; import java.util.Scanner; /** This program reads a sequence of values and prints them, marking the largest value. */ public class LargestInArrayList { public static void main(String[] args) { ArrayList values = new ArrayList(); // Read inputs System.out.println("Please enter values, Q to quit:"); Scanner in = new Scanner(System.in); while (in.hasNextDouble()) { values.add(in.nextDouble()); } // Find the largest value double largest = values.get(0); for (int i = 1; i < values.size(); i++) { if (values.get(i) > largest) { largest = values.get(i); } } // Print all values, marking the largest for (double element : values) { System.out.print(element); if (element == largest) { System.out.print(" <== largest value"); } System.out.println(); } } }