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--)
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.
how a nested for loop increments the outer loop and then the inner loop and then when it runs the inside code.I've ran the program a few times but I'm just not understanding it, need little narrative to it?
I need to write a class,that will give me output like this:
* *** **** *** *
I have to use for loop,i know that i have to use nested for loops, for rows and columns. I just cant figure it out the thing with spaces,and how to turn it to count back.
Im trying to create a checkerboard pattern with 2 nested for loops . I need to output asterisk characters. Im supposed o use an n int so I dont know if im limited to that 1 int. Im only getting 1 line of asterisk.
* * * * * * * * * * * * * * * * * * * * package checkerboard; public class Checkerboard { public static void main(String[] args) { for (int row = 1; row < 6; row++){ System.out.print("* "); for (int col = 6; col < col; col++) {
// Demonstrate a two-dimensional array class TwoDArray { public static void main(String args[]) { int twoD[] [] = new int[4] [5]; int i, j, k = 0;
[Code] .....
Output:
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19
(1) I don't understand how repeating the loop creates the structure of the output. Taking the second loop away and putting the "System.out.print(twoD[i] [j] + " " );" under k++ creates the output to print a number on each line. How do I write the code not having the second loop, assigning k to each value that is moved through the grid then printing it out but having the output the same?
So I cant figure out why my output for my for loop isn't working properly. So the output for the square comes out right but the for loop isn't working properly for the H. I have tried to figure it out and it should go to the next line but its not.
import java.util.Scanner; public class Random { public static void main(String [ ] args) {
I've made my loop, but I am unable to get more then a 1 1 1 checkerboard properly. I am stuck on how to divide the filler characters to make the proper square size. As of now they are all one lined.
import java.util.*; public class Checker{ public static void main(String[] args) { int col, row, size; char filler; System.out.println("Please enter 3 numbers and a character."); //output
Question: 1. Declare and implement a class named Substrings. The class will contain the following data members and methods:
Data members: string S
Methods: setS() take a string as a parameter and store it in S printSub1(), printSub2(), printSub3(), printSub4() print all substrings of S. If S = "abcd",
Alright so after doing some googling and watching tutorials I managed to put together the first two but I still don't exactly understand how nested for loops work, however just a single loop I do understand.
Secondly, the 3rd and 4th prints are completely destroying my brain using for loops, which we are supposed to use. Check out my code below, also keep in mind the 3rd is giving errors and the 4th i had to revert back to the same as the first print temporarily because my code because so messed up. How to understand nested for loops better.
[code=Java]
import java.util.Scanner; class subString { String S; void setSubstring(String SS) { S = SS;
[Code] .....
Compiling: error for myS.printSub3 and myS.printSub4 is the same as 1 because i had to revert it after ruining the code.
So basically i have to read from a text file and get some information back from that and print to screen. Im quite confused and im not sure what loop i should use first to scan the text and receive certain information back?
Nested for-loops always throw me in a loop.I found a snippet that uses 2 for-loops to check if there is a duplicate element in the array:
/* * brute force way of checking if array contains duplicates in Java comparing each elements to all other elements of array complexity on order of O(n^2) not advised in production */ public static boolean bruteforce(String[] input) { for (int i = 0; i < input.length; i++) { for (int j = 0; j < input.length; j++) { if (input[i].equals(input[j]) && i != j) { return true; } } } return false; }
Let us say we have: String[] input = new String[] {"one","two","three","one"}
I'm having problems with the mid section of the rocket, specifically the bottom part of the mid section:
|../..../..| |.//..//.| |//////|
I'm having difficulty writing the for loop to correctly print the dots. You're supposed to incorporate a constant which allows you to adjust the size of the overall figure. The loop doesn't work when I adjust the size, only when the value of HEIGHT is 3. The loop, however, for some reason works with the top part of the mid section.
This is the for loop for the top section.
for (int dots = 1; dots <= -1 * line + 1 * HEIGHT; dots++) { System.out.print("."); }
This is the for loop for the bottom section.
for (int dots = -1 * line + 1 * HEIGHT; dots <= 1; dots++) { System.out.print("."); }
Usually reversing the iteration of the loop just requires flipping the conditions, right? But it didn't work this time for some reason. Why this doesn't work? I can post the code to my entire program for compiling.
When input validation for the first months rainfall is non-negative, this results in correct average rainfall.
When input validation is used for the first months rainfall I'm prompted to input a positive number, which is 2.
When asked to input rainfall, in inches, for each month, I begin with input -3, I am again prompted to re-enter a positive, I enter 3. What happens is, whichever positive integer I input after I had entered a negative for the first months rainfall, the average would be off by the positive number inputted.
package averagerainfall; import java.util.Scanner; public class AverageRainfall { public static void main(String[] args) { int maxYears; int totalMonths;
We were given a class lab that asks us to write a program that create a multidimensional array ( 5 x 5 ), populates the array using nested loops with letter from A until Y, and displays the array to the screen. and the result should look like this:
A B C D E F G H I J K L M N O P Q R S T U V W X Y
How to write this program.. I have tried all my best but the results are not coming like this..
I 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)
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>();