Java

Java RSS

help..

Please support our Java advertiser: Programming Forums - DaniWeb Sister Site

•

Join Date: Nov 2009

Posts: 17

Reputation: alreem is an unknown quantity at this point

Solved Threads: 0

alreem

Offline

Newbie Poster

help..

25 Days Ago

hello

Can u help me ?

write an java program that outputs the following pattern. The program shuold prompt the user an odd number of lines (limit 1 to 11) .

For example, if the user prompt the number of the lines is 9, then the output should be:

+
++
+++
++++
+++++
++++
+++
++
+

•

Join Date: Aug 2007

Posts: 794

Reputation: darkagn has a spectacular aura about

Solved Threads: 110

darkagn

Offline

Master Poster

25 Days Ago

Hi alreem,

We can only help you if you show that you have made some sort of an attempt. Do you have an algorithm or some code that you have tried? We may be able to point you in the right direction if we can see what you are thinking...

There are no stupid questions, only those too stupid to ask for help.
echo is a web developer's best friend.

•

Join Date: Nov 2009

Posts: 17

Reputation: alreem is an unknown quantity at this point

Solved Threads: 0

alreem

Offline

Newbie Poster

24 Days Ago

I tried this one, but there is some thing wrong >!

package javaapplication3;
import java.util.Scanner;
public class main {

public static void main(String[] args) {
Scanner read= new Scanner(System.in);

int count,i,number;
System.out.print("Enter the number: ");
number= read.nextInt();
if (number%2==0)
System.out.println(" Plz enter an odd number");
else
System.out.println(" The number is odd ");

count=1;
while (count<= number)
{
i=1;
while(i<=count)
{
System.out.print(count);
i=i+1;
}
System.out.println();
count=count+1;
}

count=(number-1);
while (count<=(number-1))
{
i=1;
while(i<=count)
{
System.out.print(count);
i=i+1;
}
System.out.println();
count=count-1;

}

}

}

•

Join Date: Oct 2009

Posts: 20

Reputation: AndreiDMS is an unknown quantity at this point

Solved Threads: 0

AndreiDMS

Offline

Newbie Poster

24 Days Ago

Hi alreem,
please next time use the [code] tags to enclose your code,

 Help with Code Tags 
 Java Syntax (Toggle Plain Text) 
public static void main(String[] args) {
		Scanner read= new Scanner(System.in);
 
		int count,i,number;
		System.out.print("Enter the number: ");
		number= read.nextInt();
		if (number%2==0){
			System.out.println(" Plz enter an odd number");
			// here you should read the number again until it's odd or 
			// use System.exit() to exit the program
		}
		else
			System.out.println(" The number is odd ");
 
		count=1;
		//while (count<= number){
		while (count<= (number/2)+1){	// loop until you get to the middle number
			i=1;
			while(i<=count){
				//System.out.print(count);
				System.out.print("+");
				i=i+1;
			}
			System.out.println();
			count=count+1;
		}
 
		//count=(number-1); // this will go into an infinite loop 			
		//while (count<=(number-1)){ //since the counter will be always 
						// smaller then (number-1)
		count = (number/2); // now starting from the middle
		while (count > 0){ // go backward 
			i=1;
			while(i<=count){
				// System.out.print(count);
				System.out.print("+");
				i=i+1;
			}
			System.out.println();
			count=count-1;
		}		
	}
public static void main(String[] args) {
		Scanner read= new Scanner(System.in);

		int count,i,number;
		System.out.print("Enter the number: ");
		number= read.nextInt();
		if (number%2==0){
			System.out.println(" Plz enter an odd number");
			// here you should read the number again until it's odd or 
			// use System.exit() to exit the program
		}
		else
			System.out.println(" The number is odd ");

		count=1;
		//while (count<= number){
		while (count<= (number/2)+1){	// loop until you get to the middle number
			i=1;
			while(i<=count){
				//System.out.print(count);
				System.out.print("+");
				i=i+1;
			}
			System.out.println();
			count=count+1;
		}
		
		//count=(number-1); // this will go into an infinite loop 			
		//while (count<=(number-1)){ //since the counter will be always 
						// smaller then (number-1)
		count = (number/2); // now starting from the middle
		while (count > 0){ // go backward 
			i=1;
			while(i<=count){
				// System.out.print(count);
				System.out.print("+");
				i=i+1;
			}
			System.out.println();
			count=count-1;
		}		
	}

anyway I hope I didn't just served the code to you and that you will understand what's modified

GL

•

Join Date: Nov 2009

Posts: 17

Reputation: alreem is an unknown quantity at this point

Solved Threads: 0

alreem

Offline

Newbie Poster

24 Days Ago

hi ,

I understand it ,, but if I want the pattern like this
...............+
.............+++
..........+++++
........+++++++
......... +++++
............+++
..............+
hoW i will do it ...?
WITHOUT THE DOTS.

Thanks So Much 4 helpinG ..
=)

Last edited by alreem; 24 Days Ago at 4:25 pm.

•

Join Date: Nov 2009

Posts: 17

Reputation: alreem is an unknown quantity at this point

Solved Threads: 0

alreem

Offline

Newbie Poster

23 Days Ago

>>?

•

Join Date: Oct 2009

Posts: 20

Reputation: AndreiDMS is an unknown quantity at this point

Solved Threads: 0

AndreiDMS

Offline

Newbie Poster

23 Days Ago

You should find a formula for computing the withe spaces for each line and add it to the code.
Something like:

for the longest line you need 7 "+" signs
then for the first line you need 1 "+" sign and 3 spaces in the right side
for the second line you need 3 "+" signs and 2 spaces
for the third line you need 5 "+" signs and 1 space
so we have ...
space_characters = (longest_line + 1) / 2 - line_number;
plus_characters = line_number *2 - 1;

of course in your code, inside while loops you will use:

 Help with Code Tags 
 Java Syntax (Toggle Plain Text) 
int space_characters = (number + 1) / 2 - count;
int plus_characters = count * 2 -1;
for (int k = 0; k < space_characters; k++)
  System.out.println(" ");
for (int k = 0; k < plus_characters; k++)
  System.out.println("+");
int space_characters = (number + 1) / 2 - count;
int plus_characters = count * 2 -1;
for (int k = 0; k < space_characters; k++)
  System.out.println(" ");
for (int k = 0; k < plus_characters; k++)
  System.out.println("+");

or something like that ...
though you might not get the same pattern on screen because the width of the " " sign might be smaller than the one of the "+"

•

Join Date: Nov 2009

Posts: 17

Reputation: alreem is an unknown quantity at this point

Solved Threads: 0

alreem

Offline

Newbie Poster

20 Days Ago

emm

how I do it ?

•

Join Date: Nov 2009

Posts: 17

Reputation: alreem is an unknown quantity at this point

Solved Threads: 0

alreem

Offline

Newbie Poster

19 Days Ago

Plz , help me ...

I did not know how to do it . . ?

•

Join Date: Oct 2009

Posts: 20

Reputation: AndreiDMS is an unknown quantity at this point

Solved Threads: 0

AndreiDMS

Offline

Newbie Poster

#10

19 Days Ago

Try this:

 Help with Code Tags 
 Java Syntax (Toggle Plain Text) 
public static void main(String[] args) {
		Scanner read= new Scanner(System.in);
 
		int count,i,number;
		System.out.print("Enter the number: ");
		number= read.nextInt();
		if (number%2==0){
			System.out.println(" Plz enter an odd number");
			// here you should read the number again until it's odd or 
			// use System.exit() to exit the program
		}
		else
			System.out.println(" The number is odd ");
 
		count=1;
		//while (count<= number){
		while (count<= (number/2)+1){	// loop until you get to the middle number
			int space_characters = (number + 1) / 2 - count;
			int plus_characters = count * 2 -1;
			for (int k = 0; k < space_characters; k++)
			  System.out.print(" ");
			for (int k = 0; k < plus_characters; k++)
			  System.out.print("+");
			}
			System.out.println();
			count=count+1;
		}
 
		//count=(number-1); // this will go into an infinite loop 			
		//while (count<=(number-1)){ //since the counter will be always 
						// smaller then (number-1)
		count = (number/2); // now starting from the middle
		while (count > 0){ // go backward 
			int space_characters = (number + 1) / 2 - count;
			int plus_characters = count * 2 -1;
			for (int k = 0; k < space_characters; k++)
			  System.out.print(" ");
			for (int k = 0; k < plus_characters; k++)
			  System.out.print("+");
			}
			System.out.println();
			count=count-1;
		}		
	}
public static void main(String[] args) {
		Scanner read= new Scanner(System.in);

		int count,i,number;
		System.out.print("Enter the number: ");
		number= read.nextInt();
		if (number%2==0){
			System.out.println(" Plz enter an odd number");
			// here you should read the number again until it's odd or 
			// use System.exit() to exit the program
		}
		else
			System.out.println(" The number is odd ");

		count=1;
		//while (count<= number){
		while (count<= (number/2)+1){	// loop until you get to the middle number
			int space_characters = (number + 1) / 2 - count;
			int plus_characters = count * 2 -1;
			for (int k = 0; k < space_characters; k++)
			  System.out.print(" ");
			for (int k = 0; k < plus_characters; k++)
			  System.out.print("+");
			}
			System.out.println();
			count=count+1;
		}
		
		//count=(number-1); // this will go into an infinite loop 			
		//while (count<=(number-1)){ //since the counter will be always 
						// smaller then (number-1)
		count = (number/2); // now starting from the middle
		while (count > 0){ // go backward 
			int space_characters = (number + 1) / 2 - count;
			int plus_characters = count * 2 -1;
			for (int k = 0; k < space_characters; k++)
			  System.out.print(" ");
			for (int k = 0; k < plus_characters; k++)
			  System.out.print("+");
			}
			System.out.println();
			count=count-1;
		}		
	}