Output Programs These slides will present a variety of small programs. Each program has some type of array that was introduced in this chapter. Our concern.

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Presentation transcript:

Output Programs These slides will present a variety of small programs. Each program has some type of array that was introduced in this chapter. Our concern will be with the output of each program, and more importantly, develop some methods to determine program output correctly, for programs that involves arrays. You can expect that on quizzes and/or tests only a program segment or a method is shown.

public class Ex1201 { public static void main (String args[]) { int list[] = {11,99,22,88,33,77,44,66,55}; System.out.println(list[1]); }

public class Ex1202 { public static void main (String args[]) { int list[] = {11,99,22,88,33,77,44,66,55}; for (int index = 1; index <= 9; index++) System.out.println(list[index]); }

public class Ex1203 { public static void main (String args[]) { int list[] = {11,99,22,88,33,77,44,66,55}; for (int index = 0; index < 9; index++) System.out.println(list[index]); }

public class Ex1204 { public static void main (String args[]) { int list[] = {11,99,22,88,33,77,44,66,55}; displayArray(list); } public static void displayArray(int array[]) { // Precondition: array is a non-empty Java static array of integers System.out.print("[" + array[0]); for (int index = 1; index < array.length; index++) System.out.print(", " + array[index]); System.out.println("]"); }

public class Ex1205 { public static void main (String args[]) { int list[] = new int[10]; displayArray(list); } public static void displayArray(int array[]) { // Precondition: array is a non-empty Java static array of integers System.out.print("[" + array[0]); for (int index = 1; index < array.length; index++) System.out.print(", " + array[index]); System.out.println("]"); }

public class Ex1206 { public static void main (String args[]) { int list[] = new int[10]; list[0] = 9999; displayArray(list); } public static void displayArray(int array[]) { // Precondition: array is a non-empty Java static array of integers System.out.print("[" + array[0]); for (int index = 1; index < array.length; index++) System.out.print(", " + array[index]); System.out.println("]"); }

public class Ex1207 { public static void main (String args[]) { int list[] = new int[10]; list[1] = list[3] = list[5] = list[7] = list[9] = 9999; displayArray(list); } public static void displayArray(int array[]) { // Precondition: array is a non-empty Java static array of integers System.out.print("[" + array[0]); for (int index = 1; index < array.length; index++) System.out.print(", " + array[index]); System.out.println("]"); }

public class Ex1208 { public static void main (String args[]) { int list[] = {11,99,22,88,33,77,44,66,55}; list[1] = list[3] = list[5] = list[7] = list[9] = 9999; displayArray(list); } public static void displayArray(int array[]) { // Precondition: array is a non-empty Java static array of integers System.out.print("[" + array[0]); for (int index = 1; index < array.length; index++) System.out.print(", " + array[index]); System.out.println("]"); }

public class Ex1209 { public static void main (String args[]) { int list[] = {11,99,22,88,33,77,44,66,55}; list[1] = list[3] = list[5] = list[7] = 9999; displayArray(list); } public static void displayArray(int array[]) { // Precondition: array is a non-empty Java static array of integers System.out.print("[" + array[0]); for (int index = 1; index < array.length; index++) System.out.print(", " + array[index]); System.out.println("]"); }

public class Ex1210 { public static void main (String args[]) { int list[] = {11,99,22,88,33,77,44,66,55}; list[1] = list[3]; list[5] = list[7]; list[8] = list[6]; list[2] = list[0]; displayArray(list); } public static void displayArray(int array[]) { // Precondition: array is a non-empty Java static array of integers System.out.print("[" + array[0]); for (int index = 1; index < array.length; index++) System.out.print(", " + array[index]); System.out.println("]"); }

public class Ex1211 { static int list[] = {11,99,22,88,33,77,44,66,55}; public static void main (String args[]) { swap(3,1); swap(7,5); swap(6,8); swap(0,2); displayArray(); } public static void swap(int a, int b) { list[a] = list[b]; list[b] = list[a]; } public static void displayArray() { // Precondition: list is a non-empty Java static array of integers System.out.print("[" + list[0]); for (int index = 1; index < list.length; index++) System.out.print(", " + list[index]); System.out.println("]"); }

public class Ex1212 { static int list[] = {11,99,22,88,33,77,44,66,55}; public static void main (String args[]) { swap(3,1); swap(7,5); swap(6,8); swap(0,2); displayArray(); } public static void swap(int a, int b) { int temp = list[a]; list[a] = list[b]; list[b] = temp; } public static void displayArray() { // Precondition: list is a non-empty Java static array of integers System.out.print("[" + list[0]); for (int index = 1; index < list.length; index++) System.out.print(", " + list[index]); System.out.println("]"); }

public class Ex1213 { public static void main (String args[]) { int list[] = new int[10]; qwerty(list,5); displayArray(list); } public static void qwerty(int array[], int item) { for (int index = 0; index < array.length; index++) array[index] = item; } public static void displayArray(int array[]) { // Precondition: array is a non-empty Java static array of integers System.out.print("[" + array[0]); for (int index = 1; index < array.length; index++) System.out.print(", " + array[index]); System.out.println("]"); }

public class Ex1214 { public static void main (String args[]) { int list[] = {11,99,22,88,33,77,44,66,55}; qwerty(list,5); displayArray(list); } public static void qwerty(int array[], int item) { for (int index = 0; index < array.length; index++) array[index] = item; } public static void displayArray(int array[]) { // Precondition: array is a non-empty Java static array of integers System.out.print("[" + array[0]); for (int index = 1; index < array.length; index++) System.out.print(", " + array[index]); System.out.println("]"); }

public class Ex1215 { public static void main (String args[]) { int list[] = {11,99,22,88,33,77,44,66,55}; qwerty(list,5); list[5] = 9999; displayArray(list); } public static void qwerty(int array[], int item) { for (int index = 0; index < array.length; index++) array[index] = item; } public static void displayArray(int array[]) { // Precondition: array is a non-empty Java static array of integers System.out.print("[" + array[0]); for (int index = 1; index < array.length; index++) System.out.print(", " + array[index]); System.out.println("]"); }

public class Ex1216 { public static void main (String args[]) { int list[] = {11,99,22,88,33,77,44,66,55}; list[1] = list[2] + list[0]; list[8] = list[7] + list[6]; list[5] = list[8] - list[1]; displayArray(list); } public static void displayArray(int array[]) { // Precondition: array is a non-empty Java static array of integers System.out.print("[" + array[0]); for (int index = 1; index < array.length; index++) System.out.print(", " + array[index]); System.out.println("]"); }

public class Ex1217 { public static void main (String args[]) { int list1[] = {11,99,22,88,33,77,44,66,55}; int list2[] = new int[100]; System.out.println(list1.length); System.out.println(list2.length); }

public class Ex1218 { public static void main (String args[]) { int list[] = {11,99,22,88,33,77,44,66,55}; for(int index = 0; index < list.length; index++) list[index]++; displayArray(list); } public static void displayArray(int array[]) { // Precondition: array is a non-empty Java static array of integers System.out.print("[" + array[0]); for (int index = 1; index < array.length; index++) System.out.print(", " + array[index]); System.out.println("]"); }

public class Ex1219 { public static void main (String args[]) { int list[] = {11,99,22,88,33,77,44,66,55}; list[1] = list[2] + list[0]; int x = 1; if (list[1] == list[4]) x = 11; for(int index = 0; index < list.length; index++) list[index] /= x; displayArray(list); } public static void displayArray(int array[]) { // Precondition: array is a non-empty Java static array of integers System.out.print("[" + array[0]); for (int index = 1; index < array.length; index++) System.out.print(", " + array[index]); System.out.println("]"); }

public class Ex1220 { public static void main (String args[]) { int list[] = {11,99,22,88,33,77,44,66,55}; System.out.println(list[list.length]); System.out.println(list[list.length - 1]); }

public class Ex1221 { public static void main (String args[]) { int list[] = {11,99,22,88,33,77,44,66,55}; System.out.println(list[list.length - 1]); }