How To Determine Value After Nested For Loop

Oct 12, 2014

int count = 0;
for (int x = 0; x < 3; x++)
for (int y = x; y < 3; y++)
for (int z = y; z < 3; z++)count++;

What is the value of count after the code segment is executed?

The answer is 9, but I don't really understand how this answer was derived.

View Replies


ADVERTISEMENT

How To Determine Value After Nested For Loop

Oct 12, 2014

int count = 0;
for (int x = 0; x < 3; x++)
for (int y = x; y < 3; y++)
for (int z = y; z < 3; z++)
count++;

What is the value of count after the code segment is executed?

The answer is 9, but I don't really understand how this answer was derived.

View Replies View Related

Nested If / Else - Cannot Determine Logical Mistake

Jan 5, 2015

The title says already where my difficulties are. I forgot to say, the "S" printing part works, but why the others doesn't. To make it more clear:

java Monoton 1 3 3 4 & java Monoton 1 3 4 1

=> nothing (my output)

I forgot to notice, with 1 3 3 4 as parameters it jumps out at if (b < c), which is expected. but it jumps out of the whole if instead just run the else part. that's the essence of my problem.

The Exercise:

=> The program should print the following letters;

S, if every number is true bigger than the before,

M, if every number is bigger or equal than the before,

N in the other cases

Examples (from the exercise)

=> java Monoton 0 1 2 4

S

=> java Monoton 1 3 3 4

M

=> java Monoton 1 3 4 1

N

The Exercise should done without the use of logical operators or other combined requirements.

Java Code:

public class Main {
public static void main(String[] args) {
int a = Integer.parseInt(args[0]);
int b = Integer.parseInt(args[1]);
int c = Integer.parseInt(args[2]);
int d = Integer.parseInt(args[3]);

[Code] .....

View Replies View Related

Nested For Loops - Determine If Inputted Integer Is Even Or Odd

Sep 29, 2014

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)
{

[Code] ....

Output

Enter a positive odd integer: 5

Square:
*****
* *
* *
* *
*****

H:
* *

View Replies View Related

While Loop Inside A For Loop To Determine Proper Length Of Variable

Feb 25, 2014

Here's the code: it's while loop inside a for loop to determine the proper length of a variable:

for (int i = 0; i < num; i++) {
horse[i]=new thoroughbred();
boolean propernamelength = false;
while (propernamelength==false){
String name = entry.getUserInput("Enter the name of horse "

[code]....

I was just wondering what was going on here -- I've initialized the variable, so why do I get this message? (actually the carat was under the variable name inside the parentheses.

View Replies View Related

Nested Do While Loop

Apr 5, 2014

just trying to learn it on my spare time and I'm doing do-while loops

public class help {
public static void main (String args[])
throws java.io.IOException {
char choice, ignore;
do{
System.out.println ("Choose one:");
System.out.println("1. if");
System.out.println("2.switch");
 
[code]....

It makes no difference in the program wither i delete this block or keep it..how while (choice < '1'| choice >'2'); translates? I would assume it would be while (choice >= '1'| choice =<'2');?

View Replies View Related

How To Use Nested For Loop

Dec 17, 2013

Question: you are only allowed to use numbers from 1-6. Write a program to find all the permutations when three numbers are multiplied together to give a result 8. one number cannot occur twice in any permutation.

public class number4
{ public static void main(String[] args)
{
for(int a=1; a<=4; a++)
{
for(int b=1; b<=4; b++)
{

[Code]...

my program also prints out 2 2 2. but i'm not allowed to do that. how can I stop it from printing 2 2 2 ?

View Replies View Related

Can For Loop Be Nested Inside If?

Mar 6, 2015

Here's what "Why doesn't this work?" question. It concerns a small method which is part of a card game.

I'm trying to check a condition from a section of an array, without a predetermined number of times any given call to this method will require a check. How much of the array I'm checking could vary greatly.

Is it at all possible to nest a for loop yielding a variable number of boolean && conditions inside an if? Am I just missing the right bracketing or is this nesting (if that's the word) even possible in the language?

To clarify, below is broken code. Compiler isn't letting me accomplish this goal as I envision it.

public boolean isFlanking() {
boolean f;
int reach = Math.abs(selectorX - targetX);
if(rival.getDeck()[selectorX].getPile().isEmpty() == true &&

[Code] ....

View Replies View Related

The Nested While Loop Will Not Execute

May 21, 2014

//Main method
public static void main(String args[])throws IOException{
boolean runProgram = true;
Scanner keyboard = new Scanner(System.in);
//runs program while runProgram is true
while (runProgram){

[code].....

View Replies View Related

Reading A Nested For Loop

Nov 5, 2014

for (int i = 0; i < 4; i++)
{
for (int k = 0; k < i; k++)
{
System.out.print(" ");
}

for (int j = 4; j > i; j--)
{
System.out.print("$");
}
System.out.println();
}

I was told that the answer when this code segment is printed look's like this:
$$$$
$$$
$$
$

Here's what I did:Looking at the outer for loop, (i) 0 < 4 so I went into the first inner nested loop. (k) 0 is not less than (i) 0 so I went to the 2nd inner nested loop and found that it worked, and I was able to repeat this loop 3 more times and then I exited the loop and printed the line out (giving me the first line of four $). I then went back to the outer for loop, increased i by 1 and (i) 1 < 4 so I went to the 1st inner nested loop. I used the 0 for the k first and (k) 0 < 1 so I printed out a space (now here's where I get lost) I then incremented k by 1, so k = 1, but 1 is not less than 1 (i) and so I moved on to the next nested for loop. So when this line is printed, I'll only have one space when there should be 4.

View Replies View Related

Big-O Notation Of A Nested For And While Loop

May 20, 2014

I'm having trouble figuring out the Big-O notation for this loop. For now I only have it in pseudocode. I hope you understand it anyway

for i = 1 to n do
j = 1
while j <= n/2 do
print "*"
j = j + 1
end while
end for

View Replies View Related

Nested For Loop - Pattern Printing

Feb 13, 2014

I don't know how to write a program based on for loop like pattern printing.etc

View Replies View Related

Java Enhanced For Loop Nested?

Sep 27, 2014

how does this nested enhanced for loop execute? I dont know how to indent the code.

for (String exam : exams)
for (String level : levels)
for (String grade : grades)
System.out.println(exam+":"+level+":"+grade);

Note:

exams,levels,grades are arraylist
exams contain Java,Oracle
levels contain Basic,Advanced
grades contain pass,fail

View Replies View Related

Printing Pattern Using Nested Loop

Jan 19, 2015

I built a java code to print the following pattern using nested loop:

1 2 3 4 5 6 7 8 7 6 5 4 3 2 1
1 2 3 4 5 6 7 6 5 4 3 2 1
1 2 3 4 5 6 5 4 3 2 1
1 2 3 4 5 4 3 2 1
1 2 3 4 3 2 1
1 2 3 2 1
1 2 1
1

And here is my code

public static void main(String[] args) {
for(int i=1; i<=8;i++)
{
for(int k=1;k<=i;k++)
{
System.out.print(" ");

[Code] .....

which gives the partially true output:

123456781
123456721
123456321
123454321
123454321
123654321
127654321
187654321

I couldn't figure out how to place the spaces.I have made some changes on the code, but it didn't work.

View Replies View Related

Simple For Loop - Determine Factorial Of A Number Entered By User

Jun 28, 2014

I'm trying to learn Java and my current project is to write a short program to determine the factorial of a number entered by the user. I haven't looked. There may be a method that will do it, but I want to use a for loop specifically.

What I have compiles just fine. I'm actually pretty thrilled just with that. Here is what I have:

class factorial {
public static void main( String[] args) {
Scanner scan = new Scanner(System.in );
int num;
int product = 1;

[Code] ....

View Replies View Related

Nested For Loop Causing Program To Crash

Jan 23, 2015

Implementation of the nested for loop. I thought it was going to go smoothly but apparently not.Purpose: This program is meant to print out all the prime numbers up to a certain range using the algorithm Sieve of Eratosthenes.

Update output: Works as expected.

Java Code:

import java.util.Scanner;
import java.util.ArrayList;
public class PrimeFactors
{
static ArrayList<Double> primeList = new ArrayList<>();
static double range = 0;
static double maxPrime = 0;
static double primeTester = 0;

[code]....

View Replies View Related

Java - Going Through Value In Multiple ArrayList (Nested For Loop)

Jan 24, 2014

I just started playing around with Java for awhile, but got caught up in a problem when using ArrayList.

CinemaAppMain
public class CinemaAppMain {
public static void main(String[] args) {
new CinemaApp().start();

[Code]....

I am trying to get the movie name and theatre title from their ArrayList, and I know I need to go through the movie list & theatre list to find their name & title, and compare it with the user input and print out the result.

I use for(int i=0;i<movies.size();i++) to go through the the movie list, and I tried using for(int i=0;i<theatres.size();i++) to go through the theatre list. But when I printing multiple time with different user input value, it will show me strange result (screening have same movie name & theatre name, the else if statement is printed below the user input, user input is printed more than once after the first time).

Edit: I know its wrong for me to use nested for loop,if not, another solution is needed to get the item inside both of the list. (getting the "title" from movie list & "name" from theatre list)

View Replies View Related

Write Nested Loop For Pyramid Pattern

Sep 26, 2014

Write a nested loop for a pyramid pattern. Well here's an ugly description of what it should look like:

1
1 2 1
1 2 4 2 1
1 2 4 8 4 2 1
1 2 4 8 16 8 4 2 1
1 2 4 8 16 32 16 8 4 2 1
1 2 4 8 16 32 64 32 16 8 4 2 1
1 2 4 8 16 32 128 64 32 16 8 4 2 1

I managed to make the pyramid using addition. However, how to turn it into multiplication x 2.

import java.util.*;

public class NumbersPyramid
{
public static void main(String[] args) {
int odd = 1;
int numSpaces = 7;

[code]....

View Replies View Related

Nested For Loop - Print Out Table Of Angles (sin / Cos And Tan)

Oct 1, 2014

I am working on my java program it prints out a table of angles and the sin, cos, and tan. For extra credit he wanted us to use nest loops to create a space after every five lines. I have come real close to getting this to work but have a problem with the very end of the table. The table needs to stop at 180...

public static void printTable(double angle,double sin,double cos,double tan) { // Method to create a table for the values
for (double j = 0; j <= 180;) {
for (double i = 1; i <= 5; i++) {//loop to print five lines of code
angle = Math.toRadians(j);

[Code] .....

Here is the end of the output of the table:

175.00.0872-0.9962-0.0875
176.00.0698-0.9976-0.0699
177.00.0523-0.9986-0.0524
178.00.0349-0.9994-0.0349
179.00.0175-0.9998-0.0175
 
180.00.0-1.00.0
181.0-0.0175-0.99980.0175
182.0-0.0349-0.99940.0349
183.0-0.0523-0.99860.0524
184.0-0.0698-0.99760.0699

View Replies View Related

Making Custom Checkerboard With Nested Loop

Feb 7, 2014

I'm trying to make a custom checkboard with given user input, in the form of (# of rows, # of columns, size of each square, filler character).

So the input 2 3 5 * would look like

*****.........*****
*****.........*****
*****.........*****
*****.........*****
*****.........*****
.........*****
.........*****
.........*****
.........*****
.........*****

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

[Code] ..........

View Replies View Related

Nested For Loop To Capture Structure Of The Figure

Jan 26, 2014

I am having problem with some problems like this nested for-loop for instance ....

-----1-----
----333----
---55555---
--7777777--
-999999999-

Now I have to write a method called printDesign that produces the following output but i am not even entirely sure how to start it out now of course i know how to make a for-loop but and i guess if i was to do something for this i would do this .....

Java Code:

for(int*j=0;j<N-k;j++){
System.out.print("-");*
for(int*j=0;j<i;j++){
System.out.print(i);*
for(int*j=0;j<N-k;j++){
System.out.print("-");*
System.out.println();*
}
}
} mh_sh_highlight_all('java');

View Replies View Related

Java Program Using Nested Loop To Compute / Display Average Of Test Results For Each Experiment

Apr 2, 2015

Four experiments are performed, each consisting of six tests. The number of test results for each experiment is entered by the user. Write a Java program using a nested loop to compute and display the average of the test results for each experiment.

You can run the program by entering the following test results:

Experiment 1 results:23.231.516.927.525.428.6
Experiment 2 results:34.845.227.936.833.439.4
Experiment 3 results:19.416.810.220.818.913.4
Experiment 4 results:36.939.549.245.142.750.6

View Replies View Related

How To Determine Size Of Table

Jul 6, 2014

Can be :

results = null;
results = new double[2];
results = new double[50];
results = new double[100];

How determine size of this table : System.out.println("table size=",???);

View Replies View Related

Determine If Rectangles Cover Each Other

Oct 22, 2014

[URL] .... This is a link to the credentials that need to be met.

/* Constructors, getters and setters that will determine if the rectangles cover each other.*/

import java.util.Random;
import java.lang.Math.*;
class Rectangle{
   int width = 50;
   int length = 50;
   int x = 90;
   int y = 90;
  
[Code] ....

View Replies View Related

Unable To Print A Loop Inside Array Of Greater Size Than Loop Itself

Jan 27, 2015

I am trying to print a loop inside an array of a greater size than the loop itself. Like for example I have an array of size 7 but it has only 3 elements.

int[] array=new int[7]
array[0]=2;
array[1]=3;
array[2]=4;

now what I want to do is print these three numbers in a loop so that my array[3]=2;array[4]=3;array[5]=4 ...... till the last one. Also the array could be any size and not just 7.

View Replies View Related

When Type Quit To Close Outer Loop / It Still Runs Inner Loop

Nov 2, 2014

I have everything else working. My problem is that when i type "quit" to close the outer loop. It still runs the inner loop. The National Bank manager wants you to code a program that reads each clients charges to their Credit Card account and outputs the average charge per client and the overall average for the total number of clients in the Bank.

Hint: The OUTER LOOP in your program should allow the user the name of the client and end the program when the name entered is QUIT.In addition to the outer loop, you need AN INNER LOOP that will allow the user to input the clients charge to his/her account by entering one charge at a time and end inputting the charges whenever she/he enters -1 for a value. This INNER LOOP will performed the Add for all the charges entered for a client and count the number of charges entered.

After INNER LOOP ends, the program calculates an average for this student. The average is calculated by dividing the Total into the number of charges entered. The program prints the average charge for that client, adds the Total to a GrandTotal, assigns zero to the Total and counter variables before it loops back to get the grade for another client.Use DecimalFormat or NumberFormat to format the numeric output to dollar amounts.

The output of the program should something like this:

John Smith average $850.00
Maria Gonzalez average $90.67
Terry Lucas average $959.00
Mickey Mouse course average $6,050.89
National Bank client average $1,987.67

Code:

public static void main(String[] args) {
Scanner scan = new Scanner(System.in);
String name = "";
int charge = 0;
int count = -1;
int total = 1;
int grandtotal = 0;
int average = 0;
 
[code]....

View Replies View Related







Copyrights 2005-15 www.BigResource.com, All rights reserved