How to calculate the minimum and the maximum in the same program.
public static void main(String[] args) {
Scanner keyboard = new Scanner(System.in);
int integers;
int[] numbers;
numbers = new int[10];
int max;
int min;
[Code] ....
My result when I input numbers are always the following:
"Numbers in reverse order are: 9, Numbers in reverse order are: 8,
Numbers in reverse order are: 7, Numbers in reverse order are: 6
Numbers in reverse order are: 5, Numbers in reverse order are: 4,
Numbers in reverse order are: 3, Numbers in reverse order are: 2,
Numbers in reverse order are: 1, Numbers in reverse order are: 0."
I am writing a program to reverse a user inputted number (Example - 54321 is 12345) The code works great minus the fact that if I input a number that begins with zero, the output will drop the zero. Would it make more sense to just set this up using strings?
import java.util.*; public class Week7_Programming_Problem { static Scanner console = new Scanner(System.in); public static void main(String[] args) { int inputNum, outputNum;
Program is to list all prime numbers between two entered numbers.
import java.util.Scanner; public class question6 { public static void main(String[] args) { Scanner input = new Scanner(System.in); System.out.println("Enter lower int:"); int x = input.nextInt();
So I have to design a program that takes a word and reverses the order of it. The exact directions are:Write a recursive method void reverse() that reverses a sentence. For example:
[code = Java] Sentence greeting = new Sentence("Hello!"); greeting.reverse(); System.out.println(greeting.getText()); [/code] prints the string "!olleH".
Implement a recursive solution by removing the first character, reversing a sentence consisting of the remaining text, and combining the two. So basically my biggest issue is my method to actually reverse the word.
public class Sentance { private String Word; public Sentance (String aWord) { Word = aWord;
I have a GUI with a textArea for the user to input numbers, a button which should "listen" for those numbers, and then a textField to display the sum. I have my code working for user input of one number; but I'm at a loss as to what sort of loop I need to create to get it to read each line of input. I wasn't sure whether to put this in the beginner forum or here, because I am definitely a beginner.
Program to pull prime numbers between two entered values,
import java.util.Scanner; public class question6 { public static void main(String[] args) { Scanner input = new Scanner(System.in); System.out.println("Enter lower int:");
I need to write a Java program to perform a mathematical calculation between two numbers entered by the user. User has to choose the mathematical operation and input it and then when the user enters 2 numbers, he gets the answer. When user enters any other character other than *, /, + and - he should be able to exit. Perform calculation between numbers should be until user decided to exit from the program. My code is below, calculation part goes well, but can't get it exit when user enter any other character.. How to fix it?
import java.io.*; public class q11 { public static void main(String[]args)throws IOException { InputStreamReader ISR=new InputStreamReader(System.in); BufferedReader BR=new BufferedReader(ISR); while(true){ System.out.println("Enter.."); System.out.println("* : For multiplication");
a. Write a Java program to input 10 integer numbers into an array named fmax and determine the maximum value entered. Your program should contain only one loop, and the maximum should be determined as array element values are being input. (Hint: Set the maximum equal to the first array element, which should be input before the loop used to input the remaining array values.)
b. Repeat 1a, keeping track of both the maximum element in the array and the index number for the maximum. After displaying the numbers, display these two messages:
The maximum value is: _________ This is element number __________ in the list of numbers
Have your program display the correct values in place of the underlines in the messages.
c. Repeat 1b, but have your program locate the minimum value of the data entered.
I did parts a and b but for part see i just want to know if i did it correctly or not
import java.util.Scanner; public class MinimumValueArray { public static void main(String[] args) { //Variable Declaration Scanner keyboard = new Scanner(System.in); int size = 10;
[Code] ,.....
When I run it i get this The minimum value is 0.0
The element that holds the value is 0 right away. is this right for the minimum or am i supposed to enter values and it will display the minimum value like in parts a and b wit the maximum? will the minimum just always be 0 or ?
So I have to convert strings to double numbers and there can be no exception.
The strings that aren't numbers or do not fit into a set criteria have to be discarded.
When I try to write this I get an exception when a non-numeric is entered and the code stops.
What can I do? Also, am I finding the average of the array correctly?
import java.util.*; public class Grades{ public static void main(String args[]){ int arraycount = 0; final int SIZE = 10; int validArraycount = 0; final int ValidArraySize = 10;
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?
I am not very comfortable with Strings in Java. The problem I am facing is, taking a string that contains a sentence and reversing the words. Example would be, "Hi I am Bob" and changing it to "Bob am I Hi". Then returning the String.
My initial thoughts were to change the string into a character array and then manually doing the work with loops and tedious comparison statements. I quickly realized that there must be a better way but I am not very familiar with strings in Java to know what a more sufficient way would be.
My program is supposed to use recursion and iteration to sum and reverse elements in an array of Longs. The array is supposed to be 1000000 cells and I am supposed to compute the average times of 99999 trials. When I try to run the program, it keeps saying running.... but doesnt ever do anything.
public class PA2Delegate { private long[] start; private long[] end; private Long reversal; private Long sum = (long)(int)0;
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)
So I was making a Java Calculator that only adds. The problem is that the numbers are not adding. I think it is because whatever has been clicked is not being saved to be added.
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: ");
I need a regular expression in java for phone number which that does not allow any character special character only numbers should be allowed.. My sample program is
import java.util.regex.Matcher; import java.util.regex.Pattern; public class c { public String removeOrReplacePhoneNumber(String input) { if (null == input) return input;
in Operator/Literals, it says "There is no literal representation for binary numbers in C, C++, or Java." seems "0b11001" could reprensent binary numbers?
I am working on an assignment but I am not getting any out put and I couldn't fix it?The class HighLow below asks for three integers and prints the highest and lowest of them on screen. Your task is to write the missing methods high and low, which receives the integers user inputs as parameters and return the highest and lowest integers respectively.
import java.util.Scanner; public class HighLow { public static void main(String[] args) { int number1, number 2, number 3, high, low; Scanner reader = new Scanner(System.in);
I am trying to write a java application that displays composite numbers between 1 and 100. Here is the format of my code:
//a java application that prints out composite numbers that range from 1 to 100 public class printcomposites{ public static void main(String[] args){ int num=0; int i=0; String printcomposites=""; for(i=1; i<100; i++)
[code]...
My code compiles with no errors, but my code generates every integer between 1 and 100 instead of integers that are composite:
I am trying to code a program that orders 5 random numbers from high to low with the basic coding i know (im starting to learn theory of methods... so you can imagine) When i run the code i cant get all 5 numbers ordered but my logic says the code is right although it's pretty confusing.
I know you could code in a simpler way but first i wanna get it as it is right now. When i debug (on my own way cause i dont know how to actually use it) shows line 72 with yellow color.
public class NuevaCalculadora { import java.util.Scanner; public static void main(String[] args) {
