I am pretty close to finishing the diamond but I cant figure out how to print the bottom right. I have to use a for loop and if/else statements.
public static void main(String[] args) {
int input = 0;
input = getSize(input);
char[][] array = new char[input][input];
System.out.println("
Diamond:");
createDiamond(array, input);
print(array);
[code]....
So here's my code as it is right now:
Java Code:
public class PrintHoledRectangle
{
public static void main(String[] args)
{
int width = Integer.parseInt(args[0]) / 2 * 2 + 1;
int height = Integer.parseInt(args[1]) / 2 * 2 + 1;
int centre = width * height / 2 + 1;
int index = 0;
[Code] ....
The width of the rectangle to be printed is given by the first argument, the height by the second
The centre tile ("[_]") of the rectangle (to be printed as " ") is given by the formula: ((width*height)/2)+1, assuming you count each tile left-to-right, top-to-bottom
My thinking is that the programme keeps a running count (seen as 'index') so that, when the centre tile is to be printed, it outputs " ", otherwise "[_]", hence the if-else statement
Currently, it prints "[_]" to infinity
I am new to learning Java and I am trying to print an unfilled diamond using asterisks. The height of the diamond has to be based on user input. My code currently prints out a filled diamond based on user input but I cannot figure out how to print an unfilled one. Every time I change one of the loops it messes something else up.
[public static void diamond(){
int i = 0;
int j = 0;
int k = 0;
int height = 0;
[code]...
I am currently trying to print a Diamond using for-loops but I seem to be confusing my self / over-complicating it.
This is what I have so far [URL]). When I run the code I get [URL].
I want to duplicate it on to the other side but I can't seem to be able to figure out a working for-loop to print it out.
Also, is there a faster/efficient method of doing something like this?
i want solution to my program
View Replies View RelatedI am new to java and i am trying to make a Java application which prints a diamond in a square grid of dots whose side length is input to the application.When you run the code is should be like this:
..*..
.*.*.
*...*
.*.*.
..*..
My java code print this:
..*..
.***.
*****
.***.
..*..
Here is my code:
class Main {
public static void main(String args[]) {
System.out.println("#Enter size of Diamond :");
int longestRow = BIO.getInt();
for(int row=1 ; row<=longestRow ; ++row)
[Code] .....
I'm currently trying to do a diamond using Polygon. I have done this so far. It is not drawing a diamond.
import java.applet.Applet;
import java.awt.Graphics;
public class Diamond extends Applet {
int[] a = {-30, 100 , 30, 100};
int[] b = {100, 40, 100, -40};
public void init()
{
}
public void paint(Graphics g)
{
g.drawPolygon(a, b, 4);
}
So I am learning HashMaps/Arraylists and I can't really understand the diamond operator or what it's for. Take the following code for example: Why could we not just do this without the diamond?
Java Code:
import java.util.HashMap;
class Untitled {
public static void main(String[] args) {
HashMap<String, String> map = new HashMap<String, String>();
map.put("California","Sacramento");
map.put("Oregon","Salem");
map.put("Washington","Olympia");
System.out.println(map);
}
} mh_sh_highlight_all('java');
Write a program that reads an integer and displays, using asterisks, a filled diamond of the given side length. For example, if the side length is 4 the program should display.
*
***
*****
*******
*****
***
*
I have it where it displays the top half of the diamond. But i cannot figure out how to get it to draw the bottom half.
import java.util.*;
public class E616 {
public static void main(String[] args) {
Scanner input=new Scanner(System.in);
System.out.print("Enter number of rows. ");
int N=input.nextInt();
[code]...
I have to make a pattern that is of a diamond shape such as this:
Java Code:
1
1 2 3
1 2 3 4 5
1 2 3
1
mh_sh_highlight_all('java');
I wrote this (for the variable name, this is just a small part of my program and I'm trying to get the pattern right so I didn't mind my variables at the moment):
Java Code:
public class NewFile{
public static void main(String []args){
int k = 0;
for (int i=1 ; i<=5 ; i++) {
{ for (int h=2 ; h >= i ; h--)
[Code] ....
My output is the following:
Java Code:
1
123
12345
1234567
123456789
mh_sh_highlight_all('java');
I realize I should divide the code into a lower and upper triangle using two loops. However, I don't know how to break the first part. I did find the "trend" but I don't see how to implement it.
My son want to create a java program (Diamond shape) that can plot graph for with the following data.
Pattern type is:
* *
* *
*
* *
* *
*
I'm making a program where the user enters an ID number and can submit the amount of sales that person made for a specific product and write to a file. One of the things I have to do is making a running sum of the sales for each product for all people combined as well as an accumulation of the a persons sales every time he enters data. Everything seems to be working execpt my values like person1Total, person2Total...etx and product2Total.
When I try to write them to the file, they always come out at 0.0 even though they should be the sum of the indexes of the array sales.
import java.io.*;
import java.util.Scanner;
public class SalesReport {
// private static double p1Total, p2Total, p3Total, p4Total;
private static double product1Total, product2Total, product3Total, product4Total, product5Total;
private static double person1Total, person2Total, person3Total, person4Total;
public static void main(String[] args) throws IOException
[code]....
I am trying to print out a list of usernames for my chat program. It currently works except for the username portion. The Server sends a specific line that tells the client to print it as a username. That line is name//name. For example, if the name of the client was Eric, then the server would send Eric//Eric to the client. The client will then receive the line through a buffered reader. However, my current code keeps getting an error at the i=input.substring... line. Its an IndexOutOfBoundsException: String index out of range: -1.
class ChatThread extends Thread {
ChatServer cServer;
String[] sentence;
int i;
public void run() {
String input = "Eric";
try {
[code]....
So for fun I've decided to write a program that can keep track of a simple card game my friends and I designed. I've built a class for an array, that stores the basic stats of each card. I need to be able to access this array from another class, that will print the array information to a file, so we can easily keep track of who's cards have leveled up and their stats. The main class will also be using a random number generator to determine how much damage the attacker/defender deals and takes respectively. So far I have the random number generator built as well. I'm just having issues creating a print to file class and what I need to change in my array class to make it accessible by the other class that prints it to a file.
public class StartingStats {
public static void main(String[] args)
{
//Variable to use for how many spots in a stat array there are
final int statArray = 2;
[code]...
what I need to change so that a print to file class can access EACH array in this array folder. Also if any cookie cutter printToFile class I could use/borrow/change that'd be really useful, as I've never done any printing to file before. Also, the levels of each stat and exp will be changing so that's why I need a separate class to print so that I can call it when it's been updated so we always have the most up to date stats saved.
My array isn't printing. I have tried everything. I have tried putting a nested for loop in different methods but still no luck. I have also tried System.out.print but that prints random characters/numbers.
import java.util.Scanner;
public class Square
{
public static void main(String[] args)
[Code].....
^For some reason the site doesn't show the spaces between the *. It's supposed to be a 5x5 square.
I have a hashmap of the form HashMap <String, Set<String>>I am trying to create a method with one argument. The argument is a key for the hashmap, if it exists it should print out the key and the associated values. I'm falling over at even getting it to print the key, it keeps printing all the keys from within the hashmap as I don't know how to load the argument into it. I have this so far
Java Code:
public void printValue(String club)
{
boolean result = clubMap.containsKey(club);
if (result)
{
String key = clubMap.keySet(club).toString();
System.out.println(key );
[code]....
I've been working on the below code for a couple days in my spare time. Just a simple little text-based RPG. I'm brand new at programming and Java, so excuse the bad syntax. There's probably easier ways to go about what I'm trying to accomplish, but all we've learned so far in class is while loops and if statements. Anyways, the problem is that the statement "Really? Ten health points[...]yes or no?" in my code is printing twice.
int health = 0;
boolean enterHealth = false;
String verifyHealth = "";
boolean test6 = false;
boolean test7 = false;
boolean test8 = false;
[code]....
Lets say in method 1 I want to print the numbers 1 - 10. Easy stuff. I then print that to the
PrintStream outFile = new PrintStream(new File ("output5_01")); I declared.
Now I'm in another methods, How do I print lets say 11- 20 without erasing the first methods printed results?
so my desired results would be
outFile
-------------------------------
(From 1st method) 1- 10
(From 2nd method) 11-20
As of now the second method always over writes the first. None of my books cover this and its very frustrating when the entire code is done but this won't let me write to the file
Im trying to make a question game, much like a spin off from Trivial Pursuit. In this code, I call classes to get a random number. This number determines what category the question will be from. Coinciding with this number, the "if" statements go and pull the questions and answers from an alternate class. My problem is that when I try and output what should be the question and the 3 answers, its outputs "null" for each String?
This is my first class, which is just the class for the player.
Java Code: /*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/
[Code].....
I finally got this to work but only by printing out the value of each number to debug as such, was there an easier way to do it that I missed?
public class Statistics {
/**
* @param args the command line arguments
*/
public static void main(String[] args) {
// variables used
double num1;
double num2;
double num3;
double num4;
double num5;
double num6;
Scanner input = new Scanner(System.in);
//receive number and add it separately
[Code] ....
I want to know how to print this type of pattern when a name is given ???
Example:
name given TEJA
Capture.PNG
How do you replace negative zero value with a zero value when Printing results:
I want to remove the minus sign in -0.0000 and instead have 0.0000.
I am Printing coordinates and I do not want to have negative zero.
the coordinates are defined as double.
System.out.format(java.util.Locale.US," %.4f %.4f %.4f %.4f%n"xCur ,yCur,xNext,yNext);
0.0000 1.0000 -0.0000 0.0000
I am writing a Java permutation program, it takes in N and k and gives k amount of combinations based on N length.
That portion works, but the portion I have that does not work is when k is greater then 1, the array is then then printing strings out of index.
The perm algorithm ends on index - 1 for moving characters but then I push all those characters into an Array List, I would think I could print them off however I want from there but that is not the case. I'll include the minimum amount of code possible.
//permString = 1234 or something, it doesn't matter
//Use Case N = 4 k = 3, prints out 123,124,132,134 ect
//Use Case N = 4 k = 2, error index out of range but only on the printing function; the perm function doesn't take k and
//is based on length
//the "" is just an empty string
permNow("", permString);
}
[code].....
I have a project to create an application where you can print all the detail to be written on a receipt (no more manual writing). I already have blank receipts. All I want to know is how to do that printing the details at exact position in my blank receipt. I'm starting to read about Jasper Reports but I don't know how it will work since most of its example are creating template.
View Replies View Relatedwhy my code is not printing the matrix and sum?
The Java-program Matrix below first asks the user for the number of rows and columns in a matrix. After this the program asks for the values of the elements. Finally, program prints the elements of the matrix and their sum on screen. Your task is to create the missing methods. Check the example print to see how to modify the print. When printing the matrix, values on the same row are separated using tabulator.
Program to complete:
import java.util.Scanner;
public class Matrix {
public static void main(String[] args) {
int rows, columns;
Scanner reader = new Scanner(System.in);
System.out.print("Type in the number of rows: ");
[code]...
Write the missing methods here / Methods are written in the text box below.
Example output
Type in the number of rows: 3
Type in the number of columns: 4
Type in the element 1 of the row 1: 1
Type in the element 2 of the row 1: 2
Type in the element 3 of the row 1: 3
Type in the element 4 of the row 1: 4
Type in the element 1 of the row 2: 5
[code]...
Matrix:
1 2 3 4
5 6 7 8
9 10 11 12
Sum of the elements of the matrix: 78
my code
import java.util.Scanner;
public class apples {
public static void main(String[] args) {
int rows, columns;
Scanner reader = new Scanner(System.in);
System.out.print("Type in the number of rows: ");
[code]...
I am learning while loops but the output I am getting is not what I want? My class:
public class BottlesOnWall {
public static void main (String[] args) {
int x = 99;
while (x > 1) {
System.out.println(x + " bottles on the wall!");
[Code] .....
The output I am getting is this:
99 bottles on the wall!
98 bottles on the wall!
97 bottles on the wall!
96 bottles on the wall!
95 bottles on the wall!
[Code] ....
I want it to stop on "2 bottles on the wall!" and then print "Only 1 bottle left on the wall!". How do I go about doing that? I have tried different variations of the condition (x>1), I have tried (x>5) but it still goes down to 1 bottle?