How To Write First 30 Fibonacci Numbers
Jun 29, 2014
I want to write the first 30 Fibonacci numbers so wrote this script:
Java Code:
int num1 = 1;
int num2 = 1;
int num3;
String x = num1 + ", " + num2;
for (int i=1; i==28; i++){
num3 = num1 + num2;
x += ", " + num3;
num1 = num2;
num2 = num3;
}
System.out.println(x); mh_sh_highlight_all('java');
This script outputs this only: 1, 1
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Dec 31, 2014
My code:
public class Fibonacci {
/**
* @param args
*/
public static void main(String[] args) {
int f[]=new int[100];
for(int j=0; j<100;j++){
f[j]=j;
[Code] ....
How can I improve my code?
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Nov 1, 2014
Here is my program and results and I am having a error on line 38 which is "public static long fib01(long paramLong)" The program does give me my results but I am trying to correct there error.
public static void main(String[] args) {
{
System.out.print("
" + String.format("%-10s", new Object[] { "Index" }));
System.out.print(String.format("%-15s", new Object[] { "Fibonacci01" }));
System.out.print(String.format("%-15s", new Object[] { "Fibonacci02" }));
System.out.println(String.format("%-15s", new Object[] { "Fibonacci01" }));
[Code] ....
Index Fibonacci01 Fibonacci02 Fibonacci01
--------------------------------------------------
0 0 0 0
1 1 1 1
2 1 1 1
3 2 2 2
4 3 3 3
5 5 5 5
6 8 8 8
7 13 13 13
8 21 21 21
9 34 34 34
10 55 55 55
11 89 89 89
12 144 144 144
13 233 233 233
14 377 377 377
15 610 610 610
16 987 987 987
17 1597 1597 1597
18 2584 2584 2584
19 4181 4181 4181
20 6765 6765 6765
21 10946 10946 10946
22 17711 17711 17711
23 28657 28657 28657
24 46368 46368 46368
25 75025 75025 75025
26 121393 121393 121393
27 196418 196418 196418
28 317811 317811 317811
29 514229 514229 514229
30 832040 832040 832040
Exception in thread "main" java.lang.RuntimeException: Uncompilable source code - illegal start of expression
at fibonacci.Fibonacci.main(Fibonacci.java:38)
--------------------------------------------------Java Result: 1
BUILD SUCCESSFUL (total time: 0 seconds)
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Oct 10, 2014
I need to write a JAVA program and algorithm that writes the numbers from 1 to 1000. Then I ned to write another one that writes the numbers from 1 to 1000, but 5 by 5. ( example 5,10,15,20,25,30)....
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Jan 23, 2015
I have to write a program that find the sum of two numbers 62 and 99 and stores them in a variable named total. However, I have one error that I just can't get rid of and can't tell what it is. I'm using jGrasp and here's what it says:
Programming Challenge #5.java:14: error: class SumofTwoNumbs is public, should be declared in a file named SumofTwoNumbs.java
public class SumofTwoNumbs {
^
1 error
----jGRASP wedge2: exit code for process is 1.
----jGRASP: operation complete.
and here: is my code:
import java.util.Scanner;
/*
* To change this license header, choose License Headers in Project Properties.
* To change this template file, choose Tools | Templates
* and open the template in the editor.
*/
/**
// This program has variable of several of the integer types.
public class SumofTwoNumbs {
public static void main(String[] args) {
[code]....
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Jul 8, 2014
I am trying to write a program that takes two numbers and multiplies them. I got this idea from this running conversion program
import java.util.Scanner;
public class Convert
{
public static void main (String [] args)
{
Scanner reader = new Scanner (System.in);
double farenheit;
double celsius;
[code]...
i am getting a cant find symbol for the output = (alpha*beta) line..Also, am I using the reader object correctly ? hould I create two reader objects as there are 2 inputs needed?
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Jul 22, 2007
I'm going to be taking an object oriented paradigm using java during intersession in a few months. I'm trying to brush up on it a bit. The problem is. Write an application that displays the numbers 1 to 4 on the same line, with each pair of adjacent numbers separated by one space. Write the program using the following techniques:Use one system.out.printLn statement.Use four system.out.print statement.Use one system.out.printf statement.
This is what i have so far .
Java Code: public class Display
{
public static void main(String [] args) {
System.out.print("1 ");
System.out.print("2 ");
System.out.print("3 ");
System.out.print("4 ");
System.out.println(" ");<----is that what that is supposed to look like, and where it goes?
System.out.printf(" %s %s %s %s ");????
}
} mh_sh_highlight_all('java');
i cant test this my console isn't working right, and i haven't finished my compiler install.
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Feb 15, 2015
So i need to write a program that prompts the user for 3 double numbers x, y, z that outputs 2x^3 + 3y^5 + 3x^3y^2 +xyz with
(1) 4 digits precision
(2) with a ',' to separate thousands
(3) all digits of the result including the precision are put to 20 positions (from right to left)
I am not really sure what it is suppose to look like or how to start it.how to mix Math.pow with multivariable and printf.
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Nov 30, 2014
how do we get the following numbers (1 2 3 5 8 13 21 34 55 89) out of the following code? I can't get my head around this loop....
HTML Code:
public class Fabnoci{
public static void main(String[] args)
{
int n=10,i,f0=1,f1=1,f2=1;
for(i=1;i<=n;i++)
{
f2=f0+f1;
[code]....
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Mar 23, 2014
Fibonacci Sequence Code:
public class FibSeqByIanNeumann {
public static void main(String[] args) {
Scanner get = new Scanner(System.in);
int ctr, num1, num2, fib, maxTimes;
System.out.print("How many sequences do you want?: ");
maxTimes = get.nextInt(); //inputs the maxium limit of the fib sequence
[code]....
how to do a simple YES/NO Loop so I can try to have it work on my code if I want to try to do the Fibonacci Sequence again.Now I think it might have something to do with a do/while loop.
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Sep 22, 2014
I need to write a For Loop that prints out the first 12 Fibonacci numbers:1 1 2 3 5 8 13 21 34 55 89 144.The problem I am having is that I can not get the first two 1 numbers. I only get 1.2.3.5.8.....
int a=1;
int b=1;
for (int i=1; i<12;i++)
{
System.out.print(a+" ");
a=a+b;
b=a-b;
}
Do I need to add another For Loop that sub-tracks so that I can get the first digit of 1?
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Jan 21, 2014
public class E09_Fibonacci {
static int fib(int n) {
if (n <= 2)
return 1;
return fib(n-1) + fib(n-2);
}
public static void main(String[] args) {
// Get the max value from the command line:
int n = Integer.parseInt(args[0]);
if(n < 0) {
System.out.println("Cannot use negative numbers");
return;
}
for(int i = 1; i <= n; i++)
System.out.print(fib(i) + ", ");
}
}
please break down fib method shown above. I can't understand how the magic is happening inside that recursion.
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Jun 11, 2014
How to print 10 numbers in Fibonacci serious aftet given number?
Like 13 21 34...
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Feb 12, 2014
public class Fibonacci {
public static void main(String[] args) {
int[] numbers;
numbers = new int[20];
numbers[0] = 0;
numbers[1] = 1;
System.out.println("
[Code] ....
I wrote this program for my Java class to print out the first 20 numbers of the Fibonacci series. My assignment then tells me to Rewrite your program using dynamic array. I'm not sure how to do this.
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Nov 19, 2014
Its a program that calculates Fibonacci number.This program uses recursion.
import java.util.Scanner;
public class FibonacciMemoization{
static int[] fib = new int[60];
public static void main(String[] args){
Scanner input = new Scanner(System.in);
System.out.print("Enter a Number :");
int number = input.nextInt();
[code]...
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Apr 15, 2014
I am attempting a programming exercise to display the values in the Fibonacci sequence from F0 to F15. I understand the concept, but, for some reason my equation is simply creating a resulting string of numbers that simply increase by 2's. As, I know it is supposed to be the sum of the previous F and the F that precedes that one to total the new F number. It seems so simple yet I seem to be far off. As usual, I have worked my code for your review.
/*
* This program calculates the "Fibonacci sequence."
* A "sentinel" is used to limit the extent the calculation.
*/
import acm.program.*;
public class bookFibonacciTest2a extends ConsoleProgram {
/* Specifies the limit value of the calculations */
private static final int SENTINEL = 16;
public void run() {
println ("This program display Fibonacci sequence numbers 0 - 15.");
[Code] .....
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Oct 30, 2014
I have to find where in the fibonacci sequence a at number belongs, using a if or while loop.
Example
>55 is a Fibonacci number whose order in the sequence is 11
>35 is not a Fibonacci number. However, it lies between Fibonacci numbers 34 (order: 10) and 55 (order: 11)
import java.util.Scanner;
public class While {
public static void main(String[] args) {
System.out.println("Welcome to the Fibonacci Sequence Detector");
Scanner in = new Scanner(System.in);
[Code] .....
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Jul 8, 2014
I wrote this tail recursive function that mirrors the iterative version, except that the loop in the iterative version is replaced by an if statement here and then a recursive call. Is this truly recursive? I have seen the fibo(n-1) + fibo(n - 2) version, but is this also an acceptable recursive solution? Why is it never solved this way?
public class FiboRecursive {
public static int fibo (int n) {
int sum = 0;
int n1 = 1;
int n2 = 1;
if (n == 1 || n == 2) {
sum = 1;
[Code] ...
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Apr 29, 2014
Write a recursive method that calculates the Nth number in the Fibonacci sequence. The first and second numbers in the sequence (the base cases) are both 1. After that, each subsequent number is the sum of the previous two. Stated a bit more formally:
fib(n)={1fib(n−1)+fib(n−2)n<2otherwise
For example, here is the first few numbers in the sequence:
1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, ...
Your fib method should be part of a class named Fibonacci. In addition to the fib method, the Fibonacci class should have a main method that calls fib(9). If the result doesn't equal 34, you should print an error message. Otherwise, it should print out a message saying that it was successful.
After writing your Fibonacci class, answer the following question: How many times is the fibonacci method called when calculating the 5th number in the sequence?
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Feb 8, 2014
Program to generate Fibonacci series program using java multithreading.
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Oct 30, 2014
I have to find where in the fibonacci sequence a at number belongs, using a while loop.
Example
>55 is a Fibonacci number whose order in the sequence is 11
>35 is not a Fibonacci number. However, it lies between Fibonacci numbers 34 (order: 10) and 55 (order: 11)
import java.util.Scanner;
public class While
{
public static void main(String[] args)
{
System.out.println("Welcome to the Fibonacci Sequence Detector");
[Code] ....
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Jun 12, 2014
I wrote java program to print fibonacci series till user wants it! But I'm getting this compilation error -
fibo.java:Incompatible types
found:java,lang.String
required:int
n=s.readline();
import java.awt.*;
import java.io.*;
import java.util.*;
class fibo {
public static void main(String args[])throws IOException {
int arr[]=new int[100];
[Code] ......
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Oct 20, 2014
Part A: While Loop Program
Write a program that detects Fibonacci numbers. Prompt the user to input a positive integer. Upon input, the program will determine if the number is either a Fibonacci number or not. If a Fibonacci number, then the order of the number in the sequence must be output. If not a Fibonacci number, then the Fibonacci numbers above and below it (including their order in the sequence) must be output. Once it finishes, the program will prompt the user for a new number. The program will exit if the user enters a string (such as “quit”) instead of an integer. Use the sample output file, fib-seq-det.txt, to view a sample session
This is my project, I wrote a programs that tells you if the input number is a fibonacci number or not. For some reason it only works for some Fibonacci numbers but not all of them.
import java.util.Scanner;
public class While
{
public static void main(String[] args) {
System.out.println("Welcome to the Fibonacci Sequence Detector
");
Scanner in = new Scanner(System.in);
System.out.print("Please input a number for analysis: ");
int input = in.nextInt();
[Code] ....
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May 1, 2014
I have to create a program that calculates the nth Fibonacci number and returns that to the user. Fibonacci said his number sequence would describe the ideal breeding patterns of immortal rabbits. So, you are going to make this vision a reality.
First, take in a numeric value from the user and calculate that value in the fibonacci series. Next, find an image of a rabbit and display the image on a GUI (put the image as an icon on a label!) the number of times returned by the algorithm (Put all the aforementioned labels on one panel with FlowLayout!).
You need to remove the old images from the Panel. Probably the easiest way to do this is to create a whole new panel and remove the old one (hint: the remove method of JPanel should come in handy)
You could use an array of JLabels
You will need to create a new JLabel and add each member of the array to the panel
I should be able to scroll to see any images that are off screen
I am having difficultly on to making the array list for JLabel, and getting the Fibonacci sequence to show the pictures of rabbits. Below is my current code.
import java.awt.FlowLayout;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class Rabbit extends JFrame
[Code] ....
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Mar 12, 2014
Modify the Improved Fibonacci application to store its sequence in an array. Do this by creating a new class to hold both the value and a boolean value that says whether the value is even, and then having an array of object references to objects of that class.
Did I just need to declaring the variable in other class (for boolean value and the value itself) or else ?
Here is the code for ImprovedFibonacci.java
Java Code:
class ImprovedFibonacci {
static final int MAX_INDEX = 9;
/**
* Print out the first few Fibonacci numbers,
* marking evens with a '*'
*/
public static void main(String[] args) {
int lo = 1;
int hi = 1;
String mark;
[Code] ....
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May 14, 2015
I am not sure what is wrong with my code? The code produces a negative number when I type in 4000000 into the fib method parameter.
Each new term in the Fibonacci sequence is generated by adding the previous two terms. By starting with 1 and 2, the first 10 terms will be:
1, 2, 3, 5, 8, 13, 21, 34, 55, 89, ...
By considering the terms in the Fibonacci sequence whose values do not exceed four million, find the sum of the even-valued terms.
Java Code:
public static void fib(int k) {
int result = 0;
int[] array = new int[k];
array[0] = 1;
array[1] = 2;
for (int i = 2; i < k; i++) {
[Code] ....
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