How Many Numbers In Array Have Value Greater Than Or Equal To 100

Sep 10, 2014

I have an assignment that wants me to write a Java function based on induction to determine how many numbers in an array have a value greater than, or equal to, 100.

I have started with:

Java Code:

int recurseHundred (int [] A, int n) {
//n is the number of elements in the array.
//Base case:
if (n == 1 && n >= 100) return A[0];
//Recurse
int num = recurseHundred(A, n-1);
if (n-1 >= 100) return A[n-1];
else return num;
} mh_sh_highlight_all('java');

I don't think this actually does the trick.

View Replies


ADVERTISEMENT

Array Of Scores - Return True If Each Score Is Equal Or Greater Than One Before

Mar 8, 2014

Given an array of scores, return true if each score is equal or greater than the one before. The array will be length 2 or more.

scoresIncreasing({1, 3, 4}) → true
scoresIncreasing({1, 3, 2}) → false
scoresIncreasing({1, 1, 4}) → true

Java Code:

public boolean scoresIncreasing(int[] scores)
{
for (int i = 0; i< scores.length-1; i++) {
if (scores[i] < scores[i+1] || scores[i] == scores [i+1]) {
return true;
} else {
return false;
}
}
return false;
}

Unsure what the problem is, it will always return True for some reason...

View Replies View Related

How To Modify Text So That It Doesn't Contain Two Equal Numbers

May 3, 2014

I would like to create a program that takes some files and modifies them in this way: The files should contain text formatted in this way:

##############
#various comments#
##############
something{
identifier=1234
anotherIdentifier=1235
anotherOne=12345
//and so on...
}//I need only this
 
#Comments are sometimes made this way
 
somethingAgain{ 
#comments that explains what's below them
I:dentifier:something, I, do, not, need
#see ^that
A:notherIdentifier:boolean
//and so on..
}

And I have to make so that the numbers contained in something{} in all the files don't match. I could ask to make so that the input file is only one, and it is formatted this way:

identifier=1234
anotherIdentifier=1235
anotherOne=12345
//and so on...

but I don't know how to do the rest of the program... That's what I've done (the names of the classes, package etc. are in Italian and there's some useless code that NetBeans prevents me from deleting):

package confronto;
import java.awt.Color;
import java.io.*;
import javax.swing.*;
public class confrontoTesti extends javax.swing.JFrame {
 
[Code] ....

View Replies View Related

Array - How To Iterate Through Only Values Greater Than 0

Feb 9, 2014

I have an 46x9 array. I only have 108 values in the array for which I need to perform preliminary computations. How do I get the read to only read the 108 values whose values are greater than 0 and skip the other 495 whose values are 0?

View Replies View Related

How To Test For Array Length Equal To Zero

Mar 15, 2015

I am working on an assignment covering exception handling and am stuck on part of the assignment. How can you test for array length = 0?

When I try something like: if (array.length == 0) on a null array, naturally I get a NullPointerException. I would try something like if (array != null) but both array length of 0 and null array are supposed to throw different expressions.

View Replies View Related

Initializing Array - Equal Sign?

Nov 15, 2014

i know that int [][] x = new int[2][2] will generate a 2x2 array but I'm looking at a certification mock question and I see double [][] da = new double [3][]. What is the empty [] on the right hand side of the equal sign trying to tell me? Is there some default value?

View Replies View Related

Divide Array In Two Parts - Equal To Sum Of Elements

Dec 1, 2014

Divide an Array in two Parts in such a way so that sum will be equal while we add all the elements of array.

View Replies View Related

Comparing Two Array Lists - Output If They Are Equal Or Not

Nov 21, 2014

I need comparing two array lists. For this program i am comparing 2 array lists. The list is integers entered by the user the second is random generated numbers. So far in my program i am able to compare the 2 arrays together and output if they are equal or not however i need the program to output even if atleast one if the integers match,

EXAMPLE list one: 1, 2 ,3 ,4, 5. LIST TWO: 1, 3, 3, 3, 3.

Since the first number matches i want it to out put there is one match, so on and so forth with if there are 3 or 4 matching integers. here is my code so far.

public static void main(String[] args)
{
final int NbrsEntered = 5; //Number of guessed numbers entered
final int LOTTOnbr = 5;
int[] numbers = new int[NbrsEntered];
int[] randomNum = new int[LOTTOnbr];
//int[] TestArrayOne = { 1, 2, 3, 4, 5 };
//int[] TestArrayTwo = { 1, 2, 3, 3, 5 };
boolean arraysEqual = true;
int index = 0;

[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

Generate 100 Numbers Using Arrays - Sort Even Numbers Into Separate Array And Display Both

Apr 24, 2014

I've just written a program that generates 100 numbers that range from 0 ~ 25 using arrays, the program calls another method that sorts the even numbers into a separate array and returns the array. I need it to display both arrays, however, when I run my program, the numbers of both arrays are mixed together, and I'm not sure how to separate them.

[ public class Array1
{
public static void main(String[] args)
{
int array [ ] = new int[100];
for (int i = 0; i < array.length; i++)
{
array[i] = (int) (Math.random() * 26);

[Code] .....

View Replies View Related

Can't Override A Method - It Still Ask For Level 1.5 Or Greater

Apr 29, 2014

I'm using "standard-kepler-SR2-win32-x86_64" and have installed "jdk-8u5-windows-x64".

But eventhough I can't override a methode like that "@override", it still says me:"annotations are only available, if source lever is 1.5 or greater".

Fine, therefore I installad "jdk-8u5-windows-x64", its the higest one on that oracle side, what else is needed?

View Replies View Related

If Statements - Each Number Entered In Greater Than Zero

May 9, 2014

write a program that will ask the user to enter five numbers.using If statements if each number entered in greater than zero

import.java.util.Scanner;
public class Java3 {
public static void main(String[] args) {
function addNumbers(n1, n2, n3, n4, n5){
var finalNumber = 0;

[Code] ....

addNumbers(1, 2, 3, 4, 5,);

View Replies View Related

Find Number Of And Sum Of All Integers Greater Than 100 And Less Than 200 Divisible By 7

Oct 30, 2014

 Write a program to find the number of and sum of all integers greater than 100 and less than 200 that are divisible by 7.

View Replies View Related

Java Program To Find Index Of Greater Element Whose Value Is Sum Of Remaining Elements

Aug 25, 2014

I need to write a java program to find the index of the element whose value is the sum of the remaining elements. Recently I have been asked this question in an Interview which I couldnt solve properly.

View Replies View Related

Prompt User For Input Number And Check If It Is Greater Than Zero - Java Multiplication

Apr 13, 2014

Write a program that prompts the user for an input number and checks to see if that input number is greater than zero. If the input number is greater than 0, the program does a multiplication of all the numbers up to the input number starting with the input number. For example if the user inputs the number 9, then the program displays the following sum:

9 * 8 * 7 * 6 * 5 * 4 * 3 * 2 * 1 = 362880

That's the question I'm getting and so far all I've got is

import java.util.Scanner;
public class Lab4Q3
{
public static void main (String[] args)
{
int keyboard;

[Code] .....

View Replies View Related

Payroll Code - If Input Hours Greater Than 40 Cost To Employer Calculation Goes Wrong

Feb 28, 2014

I think I fixed the first error, but now I'm receiving another error in my Net Pay print statement at the end.

Here is what I'm supposed to receive:

Net Pay: 599.86

Here is my sample run:

run-single:
Enter hourly rate in dollars and cents --> 27.16
Enter number of hours and tenths worked --> 37.9

PAYROLL REPORT
Rate: 27.16
Hours: 37.9

Gross Pay: 1029.36
Federal Tax: 257.34
State Tax: 93.41
FICA: 78.75
Net Pay: 771.86

Employer's FICA contribution: 78.75
Employer's UEI and DI contribution: 20.59
Cost to Employer: 1128.70

Enter hourly rate in dollars and cents -->

Here is my updated code:

package assignmentproject1;
/* CHANGE (FINAL) VAR NAMES, SCAN & VERIFY,
ORGANIZE AND PUT FORMULAS ON BOTTOM, ORGANIZE VAR @ TOP, */
import java.util.*;
public class Project1 {
public static void main (String[] args)

[Code] ....

View Replies View Related

What Does Setting Object Equal To Another Do

Mar 5, 2014

I've seen this done in code:

For example:

Java Code: BufferedImageOp op = new ConvolveOp() mh_sh_highlight_all('java');

What does this mean? Is it creating an object of convolveOP for the BufferedImage class?

What does it mean when you set an object from one class equal to another?

View Replies View Related

Compare Date Less Than Or Equal To

Feb 20, 2014

How can I compare two date for less than or equal to ?

View Replies View Related

How To Equal Compressed Data

Sep 29, 2014

I have an object that may contain several other objects (sub-object) and will compress those sub-objects.
 
My question is generally what is a good way to compare two objects, as described above, if they are equal (e.g. through equals() function)?
 
Intuitively there are two ways I can think of: 1. Compare each compressed bit

The disadvantage I think is it's not efficient if the object is very big. For instance, when it holds several gigabytes data, it may took too long for just comparing each bit.
 
2. Hash the sub-object before compressing it, and then compare all hashed values. This problem is I am not very sure if hashing is a good way to compare objects. And if collision may be the problem?

View Replies View Related

Equal Values In Two Columns For Every Row In Jtable?

Feb 5, 2014

I have a JScrollPane with two coulmns. In the first column I have an image pane JTable, and in the second a list with names of sections. This second column I try to divide in two columns, one (the second column) to display the names of the sections (each row contains one name), and in the other column (the third) I want to show some values for every section in the row respectively. But, instead of displaying the desired values in the third column, I get the same names of the sections as in the second column. Here is a part of the code I have:

private Vector<Section>daten = new Vector<Section>(0); //These are the values for the first column in the Jscroll
private String[] header = {"Section","calcGYR"}; // These are the values for the second and third column (in this case the header for the both columns
public TrafficObserveModel(Vector<Section> daten) {
setData(daten);

[code]....

But I don't know how to modify the methods in order to render the desired integer values in the third column.

View Replies View Related

Override Equal And Hashcode Method

Jul 7, 2014

I read this tutorial about overriding equal and hashcode method. [URL] ....

I understand how to override equal method, by overriding it, We can custom our compare. I also understand How to override hashcode, To make custom hash.

But still I can not understand why we do it? why if equal method override, we must override hashcode method too?If we don't what is the problem?

To honor the above contract we should always override hashCode() method whenever we override equals() method. If not, what will happen? If we use hashtables in our application, it will not behave as expected. As the hashCode is used in determining the equality of values stored, it will not return the right corresponding value for a key.

Is it the right reason in order to override:

Because when we customize equal method so it focus on special variables,We must change the hash code too in order to match with it, so hashcode also focus on those special variable.

View Replies View Related

Create A Program That Will Check If One Statement Is Equal To Another

Dec 5, 2014

I'm suppose to create a program that will check if one statement is equal to another but it doesnt display the message if its equal to the inputted String

import java.util.Scanner;
 
public class sup {
public static void main (String args[]) {
Scanner in = new Scanner (System.in);
String one;

[code]...

thats just an example I was able to do it in C++ but it doesnt do what I want in Java

View Replies View Related

Resize Array And Add Numbers

Oct 21, 2014

I need to make a code that will ask the user for an array size and the numbers that go in the array. Then it must ask for a new size and copy the numbers from the first array and add numbers to fill the new array.

import java.util.Scanner;
import java.util.Arrays;
public class Lab07{
public static void main(String[] args) {
Scanner input = new Scanner(System.in);
System.out.println("How many numbers do you want to enter?");

[Code] ....

I can make the first array but I am getting stuck on the second this is what I am getting back

How many numbers do you want to enter?
3

Enter the 3.0 numbers now.
7
1.2
9

These are the numbers you have entered.
[7.0, 1.2, 9.0]

How many numbers do you want to enter?
5

Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException: 3
at Lab07.resizeArray(Lab07.java:27)
at Lab07.main(Lab07.java:18)

how do I get the new array and not the error

View Replies View Related

Storing Set Of Numbers In Array?

Oct 9, 2014

I trying to write a piece of code which takes a set of numbers or even data type and stores in an array (or something more suitable).

For example:

Date N1 N2 N3 N4 N5 Day
10/11/2012 10 09 32 100 15 Thursday
11/12/2013 01 0 0 23 50 51 Tuesday

I'd like to be able to sort them so that if I want to search for one of the entries, I can then create a function which allows me to sort them by date or even return all the numbers by a given date or day, etc....

However, I'd like to be able to set it up so that each set is "linked" meaning that again that I can search by date and it returns everything at that date.

I wanted to use an array but I don't know:

-How to do it?

-Whether this is a suitable approach?

View Replies View Related

Store Celsius And Fahrenheit Values Equal To One Another Using Loop

Sep 29, 2014

Write java program using table that stores celsius and farenheit values that are equal to one another using a loop. use C 0-20 and convert to farenheit.

I have to use doubles for Celsius and Fahrenheit and in the formula. I get a runtime error with the following displayed:

I will display a table of temperatures in their Celsius and Farenheit equivalents.

celsiusfarenheit

import java.util.*;
import java.lang.*;
import java.io.*;
class TemperatureConversion {
public static void main (String[] args) throws java.lang.Exception {
double celsius;// Temperature in degrees Celsius minimum
double farenheit;// Temperature in degrees Fahrenheit

[Code] ....

View Replies View Related

How To Add Numbers In A Column In Multidimensional Array

Mar 13, 2015

import java.util.Scanner;
public class ColumnSum {
public static void main(String[] args) {
Scanner s = new Scanner (System.in);
int userpick = 0;
int sum = 0;
int [][] matrix = {{5, 9, 87, 74, 12, 7}, // row 1

[code]...

Right now my code gets all the numbers in a row and adds those up, but I want it to get the numbers in a column and add them instead. The problem is I don't know how to get the userpick (the number that the user picks to determine which column gets added) to be set to that particular column.

View Replies View Related







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