Floating Point Numbers - Print Contents Of Array In Reverse Order
Feb 27, 2014
I am trying to do this assignment but I can't get the needed output.
Create a program that asks the user how many floating point numbers he wants to give. After this the program asks the numbers, stores them in an array and prints the contents of the array in reverse order.
Program is written to a class called ReverseNumbers.
Example output
How many floating point numbers do you want to type: 5
Type in 1. number: 5,4
Type in 2. number: 6
Type in 3. number: 7,2
Type in 4. number: -5
Type in 5. number: 2
Given numbers in reverse order:
2.0
-5.0
7.2
6.0
5.4
Java Code:
import java.util.Scanner;
public class apples {
public static void main(String[] args) {
Scanner reader = new Scanner(System.in);
double[] numbers;
Write a Java program that asks the user to store 10 numbers in an array. You should then print the array in the order entered and then print in reverse order. However, instead of putting all the information in the main, you should use a class called PrintIt. The PrintIt class should have an instance variable that is an array to hold the numbers. You should have a method that will print the array in the order entered. You will also need a method to print in reverse oder. Then create a tester class that asks the user to enter 10 numbers and puts them in an array.
So far I've got this.
public class printIt { int i; int [] numArr = new int [10]; public printIt () { i = -1;
[Code] .....
Output:
Enter a number:
8 34
Forward:
8 34
Reverse:
34 8
end
what i want as an number is being able to print out 10 numbers but this only lets me do two numbers. Why is that so?
public class ReverseOrder { public static Scanner input = new Scanner(System.in); public static void main(String[] args){ int[] numbers; double[] reverse;
I have a college question ask me to write a class StringRevert which does the following:
-prompting user for an interger n -creating an array of n string -repeatedly read character string from user input and store them in the array until end of array is reached or user input -quit(quit should not saved in array) -print the string from array in reverse order, from last enter to first enter. -assume user always supplie correct input
This is what I've done so far but how to get it working.
import java.util.Scanner; public class StringRevert { public static void main(String[] args) { Scanner in = new Scanner(System.in); System.out.println("enter value of n: "); int n1 = in.nextInt(); String[] n = new String[n1];
Create a class that allows the user to select a file and output the contents of the file to the console. Recommend using a text file to display, java files are text files. You may want to put this code in a method to allow you to complete the remainder of this assignment without overwriting your code.
- You should ask the user to enter the full path to your file to make certain you are processing the correct file.
- Modify your code/add a method to display the contents of the file in reverse order. You do not need to reverse the characters on each line but simply output the lines of the file in reverse order.
Hint: read the content of the file into an ArrayList and then traverse the ArrayList.
this is what i go so far.
package classActivity;
import java.io.File; import java.io.FileNotFoundException; import java.io.PrintWriter; import java.util.ArrayList; import java.util.Collections; import java.util.Scanner; public class Select { public static String enterFilePath()
Write an application, HiFour that prompt for four names and then prints the greetings, but with the names in reverse order and with punctuation as shown in the example.
I'm trying to make this code's output display like a sentence, since right now it displays downward and doesn' look right.
public class ReverseOrder { public static void main(String[] args) { String phrase = "The rain in Spain falls mainly on the Plain"; char[] phraseArray; phraseArray = phrase.toCharArray(); for(int i = phraseArray.length - 1; i >= 0; i--){ System.out.println(phraseArray[i]); } } // end main } // end ReverseOrder class
how the data is stored in float. It seems like the range would be greater because it stores scientific notation rather than plain value, whilst integer arithmetic performance is better. float should be used to store bigger values and integer should be used for speed when values are smaller. As an example, I want to have cubic volumes ranging from about a handful to cargo ship. So float would be necessary for that.
I am new Java Programming and I am struggling to pass my Java class. How to perform Java but I am trying. For this particular assignment I supposed to:
* Change all variables' data types to double. * Change the two prompts to request double values * Change change the two calls to the nextInt() method to nextDouble().
This is the original assignment:
import java.util.Scanner; public class ArithmeticDemo { public static void main(String[] args) { Scanner input= new Scanner(System.in); int firstNumber; int secondNumber; int sum; int difference; int average;
Develop the class “Account” to be used by a bank. The Account class should have a single instance variable “balance”. Remember that balance must be a floating point number. The required methods for the Account class are shown below.
The Account class “debit” method should return a Boolean and should not allow an overdraft. If a withdraw greater than the current balance is attempted, the function should immediately return “false” and do nothing else.
Develop a test class to thoroughly test all aspects of the Account class. DO NOT change the class name or instance variable name given or the required method names as detailed below.
Account 1 constructor with no parameters (default balance to 0) 1 constructor with a balance parameter setBalance method getBalance method credit method debit method
I have the test class done, I won't need to put that in till later. My main problem is I'm not sure how I'm going to be able to get debit and setBalance to work together with each other.
public class Account { protected double balance; // Constructor to initialize balance public Account( double amount ) { balance = amount;
[Code] ....
You can see I'm stressed out by not reading over my code. I already have the "Debit" in use, just have to change it. Which I did.
Write a program OutCircle.java that declares and initializes three floating-point variables (r, x, y): the first variable represents the radius r of a circle centered at (0,0) and the second and third variables are the coordinates (x, y) of a point in the plane.Your program should print true if the point is outside the circle and false otherwise. Hint: A point is outside the circle when its distance to the center is greater than the radius.
This is what I have to do:Write a program that takes a string of someone's name and prints it out last name first. Your program must use pointers, not array subscripts. You may use the available string manipulation functions if you find an opportunity.
Example:
"George Washington" "Washington, George"
I am not sure how to reverse the name, I have been looking in my textbook and online and cannot figure it out. This is what I have put together so far, it does not run. At the end it says unnecessary return value.
import java.util.*; import java.util.Scanner; public class Test { public static void main ( String [] args ) { Scanner sc = new Scanner(System.in); System.out.print("Enter name: "); String name = sc.nextLine(); String lastname = ""; String firstname = ""; for(int i = 0; i < name.length(); i++) { if(name.charAt(i) == ' ')
I want to write an application that inputs a sentence, tokenizes the words with method split and reverse the words (not the letters)...I am stuck at the last part: how to reverse them...should I use the method reverse(); ?
Here is my code..
import java.util.Scanner; import java.util.StringTokenizer; public class ReversedWords { //execute application public static void main( String [] args) { //get sentence
package com.arraydemo; import java.util.TimeZone; import java.util.concurrent.TimeUnit; public class ArrayStructures { public long[] theArray; public int arraySize; public ArrayStructures(int size)
I have the following double linked list and I'm supposed to order it descending (reverse) using the printInReverse() method; since the list orders itself ascending when the numbers are added, how could I order it descending in this method? Here's the code without implementing descending/reversing methods:
I am having a lot of trouble with this lab. basically I have to make a text processor to read in code put it into a file and output the contents of the input file in alphabetical order one word per line. I have to reference the string varaibles input_filename and output_filename.
import java.io.FileInputStream; import java.io.FileNotFoundException; import java.io.FileReader; import java.io.IOException; import java.io.PrintWriter; import java.util.Scanner; import java.io.File; public class TextProcessor {
[Code] ....
these are the guidelines to said lab:
1. In the main method define two Strings called input_filename and output_filename. I will be setting these Strings to my own file names for testing your code, so make sure you get these variable names correct, and that you use them properly in the following steps. 2. Read in the text contents of the file referenced by input_filename. 3. Split the contents of the input text into separate tokens, using whitespace as a delimiter. 4. Lower case the tokens. 5. OPTIONAL: remove punctuation 6. Alphabetize the tokens. 7. Using output_filename, write the alphabetized tokens to an output file, one token per line. 8. Be sure to close file streams - no resource leaks! 9. Use methods to separate functionality in your program where possible
This code is supposed to convert a decimal base number to base 2, 8 or 16. It prints the number but it's supposed to be in the reverse order for example when converting 188 to base 16. it prints CB instead of BC.
package test; import java.util.Scanner; public class Test { public static void main(String[] args) { Scanner input = new Scanner(System.in); System.out.println("Enter a positive integer."); int number = input.nextInt();
I am trying to do this assignment but I can't get the needed output. Create a program that asks the user how many floating point numbers he wants to give. After this the program asks the numbers, stores them in an array and prints the contents of the array in reverse order.
Program is written to a class called ReverseNumbers.
Example output
How many floating point numbers do you want to type: 5 Type in 1. number: 5,4 Type in 2. number: 6 Type in 3. number: 7,2 Type in 4. number: -5 Type in 5. number: 2
Given numbers in reverse order: 2.0 -5.0 7.2 6.0 5.4
My code:
import java.util.Scanner; public class apples { public static void main(String[] args) { Scanner reader = new Scanner(System.in); double[] numbers; System.out.print("How many floating point numbers do you want to type: ");
