Sorting Array In Alphabetical Order

Feb 3, 2015

I am trying to sort an array that I have by alphabetical order but I am having problems. Firstly the code that I have used to sort the array may not even do what I need but havn't got far enough to test it yet so go easy on me . I have read in some places when searching how to do this that I would have to create my own bubble sort in order to achieve this but I was hoping that Java had a built in sort method/function. Secondly I lack the knowledge in java to be able to assign an existing array or even a variable to the newly sorted array as I need the unsorted version with the original name and the newly sorted version as another.

code (This is not all of the code, I decided to include only what I thought was relevant):

import java.util.Arrays;
public class Sentence {
private String words[];
public Sentence(String[] words) { this.words = words; }
@Override
public String toString() {
return "Sentence{" +
"words=" + Arrays.toString(words) +

[Code] ....

Is it possible to shorten the sort function to just this?

public String sorted() {
return Arrays.sort(words);
}

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Apr 10, 2014

I am sorting an array in ascending and descending order. I am using the nethods in Arrays as below

Arrays.sort(myArray)

I want to print both input and output array in sysout.

Object[] ipArray = [45,8,32,41,11,7];
Object[] opArray;
Object mArray = ipArray;

Arrays.sort(mArray); This is changing the ipArray too ?

How can I get my input array unmodified ?

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Sort Strings In Alphabetical Order - Method Not Being Applied

Jan 21, 2014

I'm doing an exercise we're you're supposed to sort strings in alphabetical order, without importing anything , not using the Arrays.sort() method.

I think I got the method down partially right, or it is on the right track, but it is completely not being applied to my answer. All it prints out in the console is the actual String array twice, without sorting anything.

public class arrayofstrings {
public static void sort(String[] a) {
String temp= "";
int min;
int i= 0;
for (int j=0; j<a.length-1; j++) {

[Code] ....

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Oct 21, 2014

I couldn't where the problem with this code. The question is : (Write a program that reads in nine integers and sorts the value in the ascending order. Next, the program restores the sorted integers in a 3 x 3 two-dimensional array and display the integers as shown in the result.) And this how i did it:

package test1;

import java.io.*;
import java.util.*;
public class test1{
public static void main(String[] args){
int[] hold = new int [9];
Scanner sc = new Scanner(System.in);
System.out.print("Enter 9 integers, press <Enter> after each");
{
for (int i = 0; i < hold.length; i++);

[Code] ....

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Jun 22, 2014

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

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May 5, 2014

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Java Code:

public class Runner implements Comparable <Runner>
{
/* static variables */
private static int nextNumber;
// To be added by students in Question 3, part (i)(a) and part(iv)(a)
/* instance variables */

private int number; // runner's number
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[Code] .....

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Jun 28, 2014

I am trying to create a java program to sort an array in ascending and descending order. Here is the program I created :

import java.util.Arrays;
import java.util.Collections;
public class ArraySort
{
public static void main(String [] args) {
int [] num = {5,9,1,65,7,8,9};
Arrays.sort(num);

[Code]...

BUT I GET THE FOLLOWING EROOR ON COMPILATION

ArraySort.java:12: error: no suitable method found for reverseOrder(int[])
Arrays.sort(num,Collections.reverseOrder(num));
^
method Collections.<T#1>reverseOrder(Comparator<T#1>) is not applicable

[Code] .....

What's wrong with my program?

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Oct 15, 2014

I am writing a program that grab user input number which represent beats per minute separated by commas. It then parses the numbers and reorders them from smallest to largest and then outputs the average, medium, maximum and minimum number all in separate lines. I am having trouble getting the array to sort the input from smallest to largest. It is currently only working for 3 numbers inputted. Anything more will not reorder it.

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package heartrate;
import java.util.Scanner;
import java.util.Arrays;

[Code] ....

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Nov 12, 2014

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import java.util.*; //Required to use the scanner console
public class Week3_Programming_Problem
{
static Scanner console = new Scanner(System.in); //Allows for user input

public static void main(String[] args)

[code]....

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Feb 12, 2014

These are all arraylists and not arrays

I have currently two arrays.

Java Code:

String[] chunks = {"a","b","c"};
int[] freq = {2,4,3}; mh_sh_highlight_all('java');

I am looking for a way to order these from greatest to smallest based on frequency.

The resulting arrays should be:

Java Code:

chunks = {"b","c","a"};
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One way I can think of doing this is a two dimensional String array

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return two-one;
}
}

First I want to know how class pqsort is defined under class pe ....

And how the comparator used in this example is sorting elements in reverse order

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This piece of code i cannot change

public class Lab
{
public static void main(string args[]) {
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int sorted[]=new int[ar.length];

/// my code is right here this i can change i keep getting array required int found i'm not sure what i'm doing wrong i do know i need 2 for loops and an if statement.

[code]for(i=0;i<ar.length;i++){
for(j=i+1;j<ar.length;j++){
if(ar.length[i]>ar.length[j]
this piece of code cannot change
for(int i = 0; i<sorted.length; i++)
{
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Here is the code that I have.

File 1:
import java.text.DecimalFormat;
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= {
{"January", "3.03"},

[Code] ....

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*
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[code]....

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import java.io.File;
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import java.util.ArrayList;
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import java.util.Scanner;
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[Code] ....

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[Code] ....

I have to write a program that takes an order of numbers and print the reverse order of those numbers.

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4
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