Array:
An array is defined as a group that consists of similar data types.
- The array size must be specified by an “int” value and not long or short.
- In Java, all arrays are allocated dynamically.
- An array is always indexed, starting from 0.
Declaring an array reference and creating an array:
- To insert elements to an array, first an array has to be created by using new operator and then the reference variable is assigned.
- The syntax is as follows,
arrayRefVar = new elementType[arraySize]
- From the above statement it is clear that, an array is created using new elementType[arraySize] and then the reference to the newly created array is assigned to the variable arrayRefVar.
- It is possible to declare an array variable, create an array and assign the reference to a variable in a single statement itself.
The syntax will be as follows,
elementType[]arrayRefVar = new elementType[arraySize];
elementType arrayRefVar[]= new elementType[arraySize);
Example:
double myFile = new double[20];
The statement given above declares an array variable myFile and then creates an array that consists of 20 elements which are of the datatype double and at last assign the reference to myFile.
Explanation of Solution
b. Loop to display each element in the array:
//Class definition
public class Sample {
// define main function
public static void main(String[] args) {
// Declaration of string array
String[] planets = {"Mercury", "Venus", "Earth", "Mars"};
// Loop to read each element in the planets array
for(int i = 0; i<planets.length; i++)
// Display the contents of the planet array
System...
Explanation of Solution
c. Loop to display first character of the elements present in the array:
//Class definition
public class Sample {
// define main function
public static void main(String[] args) {
// Declaration of string array
String[] planets = {"Mercury", "Venus", "Earth", "Mars"};
// Loop to read each element in the planets array
for(int i = 0; i<planets.length; i++)
// Display the contents of the planet array
System.out.println(planets[i]...
Want to see the full answer?
Check out a sample textbook solutionChapter 7 Solutions
Starting Out with Java: From Control Structures through Objects (7th Edition) (What's New in Computer Science)
- Anagram words Write a C code that asks users to enter two words, one after the other and checks if these words are anagrams (permutations of the same letters). For instance, the words “smartest” and “mattress” are anagrams. Examplea Run 1: Please enter first word: lookplease enter the second word: coolSorry! “cool” and “look” are not anagrams. Run 2: Please enter first word: masters please enter the second word: smartes Yes! “masters” and “smartes” are anagrams. Hint: If you sort the two words that are anagrams, they will become identical! For instance, “smartest” and “masters” both sort to “aemrsstt” You can use all functions in <string.h> Sorting a string is exactly similar to sorting an array. You just need to know the length of the string and make sure you do not touch the terminating null.arrow_forwardIs it true or false? A string cannot be stored in a char data type variable.arrow_forwardLab Goal : This lab was designed to teach you how to use a while loop. Lab Description (JAVA PROGRAMMING): Remove all occurrences of the removal string from the original string. Each time you take out the removal string you must also remove the letter that preceded the removal string. After you remove a string and its leading character, you must check to see if any more occurrences of the removal string exist. Sample Data : xR-MxR-MHelloxR-M R-M sxsssxssxsxssexssxsesss xs fuxqwexqwertyxqwexqwe Sample Output : xR-MxR-MHelloxR-M - String to remove R-M Hello sxsssxssxsxssexssxsesss - String to remove xs sesss fuxqwexqwertyxqwexqwertyrtyxqwertyrtyn - String to remove qwerty fun dogdogcatddodogdogdoggog - String to remove dog catgog algorithm help use indexOf to look for more removals while you have more removals { take out the current removal using substring use indexOf to look for more removals } I need help with assignment: "String Cleaner" StringRemover.js: //(c) A+…arrow_forward
- The strLetters array is declared using the Dim strLetters() As String = {"E", "A","C", "G"} statement. Which of the following will sort the array as follows: G, E, C, A?a. Array.Sort(strLetters) Array.Reverse(strLetters)b. Array.Reverse(strLetters) Array.Sort(strLetters)c. Array.SortDescending(strLetters)d. both a and barrow_forwardThere may be extra spaces or formatting characters at the start or end of a string when interacting with a string object. Spaces and other characters can be taken out of either end of a string using the Trim and TrimEnd methods. You can provide a character or an array of characters to cut. If you give an array of characters, the string will be cut if any of the characters are found in the array.To remove spaces from the start and end of a group of string values, write a C# programme:arrow_forwardC sharp Write a method that accepts a string as an argument and checks it for proper capitalization and punctuation. The method should determine if the string begins with an uppercase letter and ends with a punctuation mark. The method should return true if the string meets the criteria; otherwise, it should return false.arrow_forward
- True or False: The << insertion operator stops reading a string when it encounters a space..arrow_forwardIn visual basic Write a For…Next loop that will printout each value in the array from problem 4.arrow_forwardWhich aggregating procedures are permitted for struct variables but not array variables, and which are not allowed for array variables?arrow_forward
- Rock, Paper, Scissors Game Create a application using (C#) in Microsoft Visual Studio that lets the user play the game of Rock, Paper, Scissors against the computer. The program should work as follows.1. When the program begins, a random number in the range of 1 through 3 is generated. If the number is 1, then the computer has chosen rock. If the number is 2, then the computer has chosen paper. If the number is 3, then the computer has chosen scissors. (Do not display the computer’s choice yet.)2. The user selects his or her choice of rock, paper, or scissors. To get this input you use clickable PictureBox controls displaying some of the artwork that you will find in the student sample files.3. The computer’s choice is displayed.4. A winner is selected according to the following rules: •If one player chooses rock and the other player chooses scissors, then rock wins. (Rock smashes scissors.)•If one player chooses scissors and the other player chooses paper, then scissors wins.…arrow_forwardTrue or False: The String class’s replace method can replace individual characters, but cannot replace substrings.arrow_forwardJAVA Programming Problem 5 – CharacterArray Write a program which will store the following string into a character array: 6901 Sudley Road Manassas VA Your program will display each original character, determine and display whether the character is a digit or a letter, and redisplay the character according to the directions below. Directions Create a class called CharacterArray. The scanner class is not required. Initialize the character array with the given string. Write a program which will accept an alpha numeric string at the keyboard. Store the string, of any length, into a character array, for example: RBDB Manassas Campus 6901 Sudley Road Manassas VA 20109 For each visible character: Display the original character Determine and display whether the character is a digit or a letter If the character is a lower case letter, redisplay the character in upper case If the character is a upper case letter, redisplay the character in lower case If the character is a digit, display it…arrow_forward
- EBK JAVA PROGRAMMINGComputer ScienceISBN:9781337671385Author:FARRELLPublisher:CENGAGE LEARNING - CONSIGNMENTProgramming with Microsoft Visual Basic 2017Computer ScienceISBN:9781337102124Author:Diane ZakPublisher:Cengage LearningMicrosoft Visual C#Computer ScienceISBN:9781337102100Author:Joyce, Farrell.Publisher:Cengage Learning,