A Java program to demonstrate how to declare and use user-defined methods and arrays.
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Program Listing


public class Max_Min {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		 double[] myList = {1.2, 9.3, 1.6, 2.5}; // Declare the array; assign values into array

		    // Call the dispArray user-defined method to display the array contents to screen.

		  public static void dispArray(double[] myList) {

		    // Print all the array elements
		    System.out.println("These are the elements in the array:");
		    for (int i = 0; i < myList.length; i++) {
		      System.out.print(myList[i] + "|");

		  private static void Sum_Average(double[] myList) {
			  // Summing and averaging all elements
			    double sum = 0;

			    for (int i = 0; i < myList.length; i++) {
			      sum += myList[i];
			    System.out.println("Total is " + sum);
			    System.out.println("Average is " + (sum / myList.length));


		  private static void Max_Value(double[] myList) {
			  // Finding the largest element
			    double max = myList[0];
			    for (int i = 1; i < myList.length; i++) {
			      if (myList[i] > max) max = myList[i];

			    System.out.println("Max is " + max);
		  private static void Min_Value(double[] myList) {
			   // Finding the smallest element
			    double min = myList[0];
			    for (int i = 1; i < myList.length; i++) {
			      if (myList[i] < min) min = myList[i];

			    System.out.println("Min is " + min);

	} // End of Code

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