Java program that adds the numbers between 1 and 1000

[robert scherer]

how do i wright a java program that adds the numbers between 1 and 1000 but skips 300 and 500 any help on this matter i would greatly appreciate

thank you

[BigDaddyLH]

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Then when you are ready post a new question in this thread.

MODERATOR

[BigDaddyLH]

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This helps to ensure that other members, and also the general public, will have a better chance of finding answers to any similar questions.

MODERATOR

[JosAH]

how do i wright a java program that adds the numbers between 1 and 1000 but skips 300 and 500 any help on this matter i would greatly appreciate

thank you

Do you know how to add those numbers *without* skipping those two numbers?
Please show us some code because we're not doing it for you.

kind regards,

Jos

[robert scherer]

// adds the numbers between 1 and 1000 excluding 300 and 500
//

int=sum;
sum=1;




this is as far as i can get i know i need a if and a while statement I know i need the while statement within my loop { }

[nomad]

// adds the numbers between 1 and 1000 excluding 300 and 500
//

int=sum;
sum=1;




this is as far as i can get i know i need a if and a while statement

have you read up on counters (++), arithmetic operators and expressions?
and if or else statements

nomad

[BigDaddyLH]

// adds the numbers between 1 and 1000 excluding 300 and 500
//

int=sum;
sum=1;




this is as far as i can get i know i need a if and a while statement

If that's as far as you can get, that's nowhere. You need to read your textbook or take some basic tutorials:

http://java.sun.com/docs/books/tutorial/java/index.html

A forum isn't the right place to get help you you can't even crawl.

[robert scherer]

I'm Just Learning Java I Know A Few Things Like You Need ; After Certain Things Also For This Program Ill Be Using A If, And A While Statement Within My Loop , I Just Dont Know How To Get It Going

[robert scherer]

int sum = 0;
if (int i = 1; i <= 1000; ++i) {
sum += i;
while( )

}




is this better

[BigDaddyLH]

I'm Just Learning Java I Know A Few Things Like You Need ; After Certain Things Also For This Program Ill Be Using A If, And A While Statement Within My Loop , I Just Dont Know How To Get It Going

Then you should go carefully through the tutorial. There are examples of all that.

[JosAH]

int sum = 0;
if (int i = 1; i <= 1000; ++i) {
sum += i;
while( )

}

is this better

Not really no; I think you're just guessing what your program should be without
knowing exactly what to do. Who gave you the idea to put that (incorrect) if-
statement there? An if statement takes a boolean value/expression and if it's
true the body of the if-statement will be executed. You actually put in an entire
for-clause in there. Try again and look up what for-loops can do. btw, I have no
idea what that while( ) thing does in there ;-)

kind regards,

Jos

[robert scherer]

If that's as far as you can get, that's nowhere. You need to read your textbook or take some basic tutorials:

http://java.sun.com/docs/books/tutorial/java/index.html

A forum isn't the right place to get help you you can't even crawl.

atleast I dont stutter when I SPEAK LOL

[BigDaddyLH]

atleast I dont stutter when I SPEAK LOL

So true. I dictate these replies and my secretary types them in.

[JosAH]

So true. I dictate these replies and my secretary types them in.

I simply whistle my replies in my good ol' audio coupler.

kind regards,

Jos

[robert scherer]

ok my friends is this closer to what i need for this program


//Sums all the numbers from 1 to 1000
//But excludes the numbers 300 and 500
//

public class Robert1
{
public static void main(String[]ARGS)
{
int sum;
int i;
for(i=1;sum=0;i<1000;i++)
if(300=500+i;)
}
}
is this right yet thanks

[BigDaddyLH]

Does it compile? No it doesn't. Take a look at this:

if(300=500+i;)

The if statement should take a boolean expression -- an expression that's true or false. But "300=500+i;" isn't well-formed. For one, "=" means assignment, so that code is trying to assign 500 plus i to the number 300! Also, expression don't involve a semicolon. Semicolons are used to turn simple expressions into statements, so no semicolons are needed to form expressions.

[robert scherer]

so would i do this then


if(i==300) (i==500)

[robert scherer]

if(i==300)
system.outprintln

[JosAH]

if(i==300)
system.outprintln

Please don't just try to blindly guess until you've got something right (by accident);
it is never going to work. What is it you're trying to express?

kind regards,

Jos

[robert scherer]

im trying to exclude 300 and 500 from my program


//Sums all the numbers from 1 to 1000
//But excludes the numbers 300 and 500
//

public class Robert1
{
public static void main(String[]ARGS)
{
int sum;
int i;
for(i=1;sum=0;i<1000;i++)
if(

im stuck right here

[trdeepak]

how do i wright a java program that adds the numbers between 1 and 1000 but skips 300 and 500 any help on this matter i would greatly appreciate

thank you

//Try the followin code

package addnumber;

/**
*
* @author Deepak
*/
public class AddNumber {

/**
* @param args the command line arguments
*/
public static void main(String[] args) {
long sum = 0;

for (int i=1; i<10001; i++) {
if (i !=300 && i !=500){ // ignore 300 and 500
sum = (sum + i);
}
}
System.out.println("Sum of number 1 to 1000 excluding 300 and 500 is: " + sum);
// TODO code application logic here
}

}

[Laharl]

We don't spoonfeed code here, trdeepak. We give hints and help, but we do not just give code, with or without an explanation. The idea is to get the OP to understand on his or her own, not to just dump code that can be c/p'd and handed in.

[robert scherer]

i did most of the code all ready look for yourself

[Laharl]

You've got a solid start, it's true. However, you don't have any of the actual code to carry out this task. Look at this tutorial from Sun for a good start on where to go from here. Look at if statements in particular.

[sujansarathi]

how do i wright a java program that adds the numbers between 1 and 1000 but skips 300 and 500 any help on this matter i would greatly appreciate

thank you

Hi Robert

This may help u

public class Add {
 
 
    public static void main(String[] args) {
    long sum = 0;
 
    for (int i=1; i<=1000; i++) {
        if(i==300 || i==500){
            }
        else{
            sum = (sum + i);
            }
        }
 
    System.out.println("Sum of number 1 to 1000 excluding 300 and 500 is: " + sum);
    }
 
    }

[JosAH]

@sujansarathi: we don't spoonfeed code here; read the rules of the game by
clicking the 'Help' link in the top right corner of this page. The OP doesn't learn
anything by copying and pasting boiler plate code. Don't do that anymore.

Since the cat is out of the bag, I propose another solution to the OP; no
explanation though but it implements the hint I gave in my first reply:

public class Add {
 
    public static void main(String[] args) {
    long sum = 1000L*1001L/2;
 
    System.out.println("Sum of number 1 to 1000 excluding 300 and 500 is: " + (sum-300-500));
    }
}

kind regards,

Jos (mod)

[karthickkuchanur]

//Try the followin code

package addnumber;

/**
*
* @author Deepak
*/
public class AddNumber {

/**
* @param args the command line arguments
*/
public static void main(String[] args) {
long sum = 0;

for (int i=1; i<10001; i++) {
if (i !=300 && i !=500){ // ignore 300 and 500
sum = (sum + i);
}
}
System.out.println("Sum of number 1 to 1000 excluding 300 and 500 is: " + sum);
// TODO code application logic here
}

}

I think u might be wrongf in this condition
i !=300 && i !=500) any way nothing problem

[dwurmfeld]

how do i wright a java program that adds the numbers between 1 and 1000...

When you have to solve a programming problem, I find it helpful to list out in words what you are trying to do;

• the answer is the sum of numbers 1 to 1000
• except 300 and 500
• somehow, either add the numbers individually
• just do not add 300 and 500
• or figure a loop that will increment the number to add to the answer
• figure out a way to check in the loop if 300 or 500 has come up and do not add them to the answer

So... possible program one: Brute force

answer = 1
answer = answer + 2
answer = answer + 3
.....
answer = answer + 299
// skip 300
answer = answer + 301
.....
answer = answer + 499
// skip 500
answer = answer + 501
... a thousand lines later ...
answer = answer + 1000

// It will work, but kind of dumb eh?

Possible solution two: A Loop of some sort

for (every number between 1 and 1000)

if it is a number I don't want, skip it (300 or 500)
otherwise, answer = answer + the current number

end of loop

// Perhaps an easier approach (at least easier to to type it in)

Possible solution three: look up Karl Friedrich Gauss's answer

• very cool
• no loops
• three steps

Just remember, if you can't write the problem down clearly in words, you don't understand the problem, and most likely, your solution will not work. Also, if your solution seems like a lot of work (like writing a thousand plus lines of code in the brute force approach) then there is probably a better way to solve it.

The Java language has many ways to loop, (while, do-while, for) and many conditional statements, (switch-case, if, if-else). Your job is to learn how to use these statements by putting them in some sort of order (a program) that will solve your problem. Feel free to ask how a particular statement works, but don't be discouraged if the answer is to look it up (we will help you with where to look it up). Just don't expect a solution to your homework, and if you do use a hint you find here, give credit where credit is due; like:

// solution based on help from the Java forum....

[sukatoa]

or (int i=1; i<10001; i++) {
if (i !=300 && i !=500){ // ignore 300 and 500
sum = (sum + i);

the if statement always satisfied until the end of the loop... ;-)