Java pattern using for loop, stuck in the last part
-2
Here is my code, I am trying to get a specific pattern but I ended up with an unexpected pattern.
for(int i = 0; i < 5; i++)
{
for(int j = 0; j < i * 2; j++)
{
if (i != 3)
{
System.out.print(" ");
}
else
{
System.out.print("*");
}
}
for(int k = 13; k > i * 2; k--)
{
System.out.print("*");
}
System.out.println();
}
I am getting this:
*************
***********
*********
*************
*****
When I should be getting this:
*************
***********
*********
***********
*************
Anyone can help me with this one? Thanks!
java loops for-loop
edited Nov 26 '18 at 16:57
jaco0646
5,39152947
asked Nov 20 '18 at 18:04
HugelevinHugelevin
31
add a comment |
-2
Here is my code, I am trying to get a specific pattern but I ended up with an unexpected pattern.
for(int i = 0; i < 5; i++)
{
for(int j = 0; j < i * 2; j++)
{
if (i != 3)
{
System.out.print(" ");
}
else
{
System.out.print("*");
}
}
for(int k = 13; k > i * 2; k--)
{
System.out.print("*");
}
System.out.println();
}
I am getting this:
*************
***********
*********
*************
*****
When I should be getting this:
*************
***********
*********
***********
*************
Anyone can help me with this one? Thanks!
java loops for-loop
edited Nov 26 '18 at 16:57
jaco0646
5,39152947
asked Nov 20 '18 at 18:04
HugelevinHugelevin
31
1
Have you tried debugging through it to see if it's going through the loops as you expect it to? Once you do that it should be clear to you what should change
– Krease
Nov 20 '18 at 18:07
add a comment |
-2
-2
-2
0
Here is my code, I am trying to get a specific pattern but I ended up with an unexpected pattern.
for(int i = 0; i < 5; i++)
{
for(int j = 0; j < i * 2; j++)
{
if (i != 3)
{
System.out.print(" ");
}
else
{
System.out.print("*");
}
}
for(int k = 13; k > i * 2; k--)
{
System.out.print("*");
}
System.out.println();
}
I am getting this:
*************
***********
*********
*************
*****
When I should be getting this:
*************
***********
*********
***********
*************
Anyone can help me with this one? Thanks!
java loops for-loop
edited Nov 26 '18 at 16:57
jaco0646
5,39152947
asked Nov 20 '18 at 18:04
HugelevinHugelevin
31
Here is my code, I am trying to get a specific pattern but I ended up with an unexpected pattern.
for(int i = 0; i < 5; i++)
{
for(int j = 0; j < i * 2; j++)
{
if (i != 3)
{
System.out.print(" ");
}
else
{
System.out.print("*");
}
}
for(int k = 13; k > i * 2; k--)
{
System.out.print("*");
}
System.out.println();
}
I am getting this:
*************
***********
*********
*************
*****
When I should be getting this:
*************
***********
*********
***********
*************
Anyone can help me with this one? Thanks!
java loops for-loop
java loops for-loop
edited Nov 26 '18 at 16:57
jaco0646
5,39152947
asked Nov 20 '18 at 18:04
HugelevinHugelevin
31
edited Nov 26 '18 at 16:57
jaco0646
5,39152947
asked Nov 20 '18 at 18:04
HugelevinHugelevin
31
edited Nov 26 '18 at 16:57
jaco0646
5,39152947
edited Nov 26 '18 at 16:57
jaco0646
5,39152947
edited Nov 26 '18 at 16:57
jaco0646
5,39152947
5,39152947
asked Nov 20 '18 at 18:04
HugelevinHugelevin
31
asked Nov 20 '18 at 18:04
HugelevinHugelevin
31
asked Nov 20 '18 at 18:04
HugelevinHugelevin
31
31
1
Have you tried debugging through it to see if it's going through the loops as you expect it to? Once you do that it should be clear to you what should change
– Krease
Nov 20 '18 at 18:07
add a comment |
1
Have you tried debugging through it to see if it's going through the loops as you expect it to? Once you do that it should be clear to you what should change
– Krease
Nov 20 '18 at 18:07
1
1
Have you tried debugging through it to see if it's going through the loops as you expect it to? Once you do that it should be clear to you what should change
– Krease
Nov 20 '18 at 18:07
Have you tried debugging through it to see if it's going through the loops as you expect it to? Once you do that it should be clear to you what should change
– Krease
Nov 20 '18 at 18:07
add a comment |
1 Answer
1
active
oldest
votes
3
The line that you print is a sequence of space '' and asterisks '*' characters. Its length is always 13. So the sum of of spaces and stars must be 13.
Whenever a line is printed 2 spaces are added to the line and 2 stars are removed, until you reach a point where the reverse operation is happened (the point is 9 stars).
This code prints that pattern.
public class Pattern{
private static final int MAX_LINE_LENGTH = 13;
private static final int MIN_LINE_LENGTH = 9;
private static final int DIFFERENCE = 2;
private static final int LINES = 5;
private static final String SPACE = " ";
private static final String STAR = "*";
public static void main(String args) {
printPattern();
}
private static void printPattern(){
int spaces = 0;
int stars = MAX_LINE_LENGTH;
boolean reverse = false;
for (int i=0; i<LINES; i++) {
printLine(spaces,stars);
if (stars == MIN_LINE_LENGTH) {
reverse = true;
}
if (reverse == false) {
spaces+=DIFFERENCE;
stars-=DIFFERENCE;
}else{
spaces-=DIFFERENCE;
stars+=DIFFERENCE;
}
}
}
private static void printLine(int spaces, int stars){
StringBuilder builder = new StringBuilder();
for (int i=0; i<spaces+stars; i++) {
if (i<spaces) {
builder.append(SPACE);
}else{
builder.append(STAR);
}
}
System.out.println(builder.toString());
}
}
answered Nov 20 '18 at 20:16
ThemelisThemelis
857518
1
Sure that will work, but I wanted to use the least code possible without having to create methods for it. I am a beginner so most of the logic you used is new for me and I don't quite seem to understand everything. I still appreciate your time to help me. Thanks.
– Hugelevin
Nov 21 '18 at 19:17
No problem @Hugelevin. By the way, I've split the code in small methods just to be cleared and more understandable. On the way you will learn to break problems into small ones and eventually write your code somehow like this above, so people will understand it. Never forget that you don't write code just for yourself, you write code to be read by others, just like I did (tried at least). Cheers!
– Themelis
Nov 21 '18 at 19:21
By the way if you have any questions about the above code snippet just ask here in the comment section.
– Themelis
Nov 21 '18 at 19:22
add a comment |
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1 Answer
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oldest
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1 Answer
1
active
oldest
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active
oldest
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active
oldest
votes
3
The line that you print is a sequence of space '' and asterisks '*' characters. Its length is always 13. So the sum of of spaces and stars must be 13.
Whenever a line is printed 2 spaces are added to the line and 2 stars are removed, until you reach a point where the reverse operation is happened (the point is 9 stars).
This code prints that pattern.
public class Pattern{
private static final int MAX_LINE_LENGTH = 13;
private static final int MIN_LINE_LENGTH = 9;
private static final int DIFFERENCE = 2;
private static final int LINES = 5;
private static final String SPACE = " ";
private static final String STAR = "*";
public static void main(String args) {
printPattern();
}
private static void printPattern(){
int spaces = 0;
int stars = MAX_LINE_LENGTH;
boolean reverse = false;
for (int i=0; i<LINES; i++) {
printLine(spaces,stars);
if (stars == MIN_LINE_LENGTH) {
reverse = true;
}
if (reverse == false) {
spaces+=DIFFERENCE;
stars-=DIFFERENCE;
}else{
spaces-=DIFFERENCE;
stars+=DIFFERENCE;
}
}
}
private static void printLine(int spaces, int stars){
StringBuilder builder = new StringBuilder();
for (int i=0; i<spaces+stars; i++) {
if (i<spaces) {
builder.append(SPACE);
}else{
builder.append(STAR);
}
}
System.out.println(builder.toString());
}
}
answered Nov 20 '18 at 20:16
ThemelisThemelis
857518
1
Sure that will work, but I wanted to use the least code possible without having to create methods for it. I am a beginner so most of the logic you used is new for me and I don't quite seem to understand everything. I still appreciate your time to help me. Thanks.
– Hugelevin
Nov 21 '18 at 19:17
No problem @Hugelevin. By the way, I've split the code in small methods just to be cleared and more understandable. On the way you will learn to break problems into small ones and eventually write your code somehow like this above, so people will understand it. Never forget that you don't write code just for yourself, you write code to be read by others, just like I did (tried at least). Cheers!
– Themelis
Nov 21 '18 at 19:21
By the way if you have any questions about the above code snippet just ask here in the comment section.
– Themelis
Nov 21 '18 at 19:22
add a comment |
3
The line that you print is a sequence of space '' and asterisks '*' characters. Its length is always 13. So the sum of of spaces and stars must be 13.
Whenever a line is printed 2 spaces are added to the line and 2 stars are removed, until you reach a point where the reverse operation is happened (the point is 9 stars).
This code prints that pattern.
public class Pattern{
private static final int MAX_LINE_LENGTH = 13;
private static final int MIN_LINE_LENGTH = 9;
private static final int DIFFERENCE = 2;
private static final int LINES = 5;
private static final String SPACE = " ";
private static final String STAR = "*";
public static void main(String args) {
printPattern();
}
private static void printPattern(){
int spaces = 0;
int stars = MAX_LINE_LENGTH;
boolean reverse = false;
for (int i=0; i<LINES; i++) {
printLine(spaces,stars);
if (stars == MIN_LINE_LENGTH) {
reverse = true;
}
if (reverse == false) {
spaces+=DIFFERENCE;
stars-=DIFFERENCE;
}else{
spaces-=DIFFERENCE;
stars+=DIFFERENCE;
}
}
}
private static void printLine(int spaces, int stars){
StringBuilder builder = new StringBuilder();
for (int i=0; i<spaces+stars; i++) {
if (i<spaces) {
builder.append(SPACE);
}else{
builder.append(STAR);
}
}
System.out.println(builder.toString());
}
}
answered Nov 20 '18 at 20:16
ThemelisThemelis
857518
1
Sure that will work, but I wanted to use the least code possible without having to create methods for it. I am a beginner so most of the logic you used is new for me and I don't quite seem to understand everything. I still appreciate your time to help me. Thanks.
– Hugelevin
Nov 21 '18 at 19:17
No problem @Hugelevin. By the way, I've split the code in small methods just to be cleared and more understandable. On the way you will learn to break problems into small ones and eventually write your code somehow like this above, so people will understand it. Never forget that you don't write code just for yourself, you write code to be read by others, just like I did (tried at least). Cheers!
– Themelis
Nov 21 '18 at 19:21
By the way if you have any questions about the above code snippet just ask here in the comment section.
– Themelis
Nov 21 '18 at 19:22
add a comment |
3
3
3
The line that you print is a sequence of space '' and asterisks '*' characters. Its length is always 13. So the sum of of spaces and stars must be 13.
Whenever a line is printed 2 spaces are added to the line and 2 stars are removed, until you reach a point where the reverse operation is happened (the point is 9 stars).
This code prints that pattern.
public class Pattern{
private static final int MAX_LINE_LENGTH = 13;
private static final int MIN_LINE_LENGTH = 9;
private static final int DIFFERENCE = 2;
private static final int LINES = 5;
private static final String SPACE = " ";
private static final String STAR = "*";
public static void main(String args) {
printPattern();
}
private static void printPattern(){
int spaces = 0;
int stars = MAX_LINE_LENGTH;
boolean reverse = false;
for (int i=0; i<LINES; i++) {
printLine(spaces,stars);
if (stars == MIN_LINE_LENGTH) {
reverse = true;
}
if (reverse == false) {
spaces+=DIFFERENCE;
stars-=DIFFERENCE;
}else{
spaces-=DIFFERENCE;
stars+=DIFFERENCE;
}
}
}
private static void printLine(int spaces, int stars){
StringBuilder builder = new StringBuilder();
for (int i=0; i<spaces+stars; i++) {
if (i<spaces) {
builder.append(SPACE);
}else{
builder.append(STAR);
}
}
System.out.println(builder.toString());
}
}
answered Nov 20 '18 at 20:16
ThemelisThemelis
857518
The line that you print is a sequence of space '' and asterisks '*' characters. Its length is always 13. So the sum of of spaces and stars must be 13.
Whenever a line is printed 2 spaces are added to the line and 2 stars are removed, until you reach a point where the reverse operation is happened (the point is 9 stars).
This code prints that pattern.
public class Pattern{
private static final int MAX_LINE_LENGTH = 13;
private static final int MIN_LINE_LENGTH = 9;
private static final int DIFFERENCE = 2;
private static final int LINES = 5;
private static final String SPACE = " ";
private static final String STAR = "*";
public static void main(String args) {
printPattern();
}
private static void printPattern(){
int spaces = 0;
int stars = MAX_LINE_LENGTH;
boolean reverse = false;
for (int i=0; i<LINES; i++) {
printLine(spaces,stars);
if (stars == MIN_LINE_LENGTH) {
reverse = true;
}
if (reverse == false) {
spaces+=DIFFERENCE;
stars-=DIFFERENCE;
}else{
spaces-=DIFFERENCE;
stars+=DIFFERENCE;
}
}
}
private static void printLine(int spaces, int stars){
StringBuilder builder = new StringBuilder();
for (int i=0; i<spaces+stars; i++) {
if (i<spaces) {
builder.append(SPACE);
}else{
builder.append(STAR);
}
}
System.out.println(builder.toString());
}
}
answered Nov 20 '18 at 20:16
ThemelisThemelis
857518
edited Nov 21 '18 at 10:08
answered Nov 20 '18 at 20:16
ThemelisThemelis
857518
answered Nov 20 '18 at 20:16
ThemelisThemelis
857518
answered Nov 20 '18 at 20:16
ThemelisThemelis
857518
857518
1
Sure that will work, but I wanted to use the least code possible without having to create methods for it. I am a beginner so most of the logic you used is new for me and I don't quite seem to understand everything. I still appreciate your time to help me. Thanks.
– Hugelevin
Nov 21 '18 at 19:17
No problem @Hugelevin. By the way, I've split the code in small methods just to be cleared and more understandable. On the way you will learn to break problems into small ones and eventually write your code somehow like this above, so people will understand it. Never forget that you don't write code just for yourself, you write code to be read by others, just like I did (tried at least). Cheers!
– Themelis
Nov 21 '18 at 19:21
By the way if you have any questions about the above code snippet just ask here in the comment section.
– Themelis
Nov 21 '18 at 19:22
add a comment |
1
Sure that will work, but I wanted to use the least code possible without having to create methods for it. I am a beginner so most of the logic you used is new for me and I don't quite seem to understand everything. I still appreciate your time to help me. Thanks.
– Hugelevin
Nov 21 '18 at 19:17
No problem @Hugelevin. By the way, I've split the code in small methods just to be cleared and more understandable. On the way you will learn to break problems into small ones and eventually write your code somehow like this above, so people will understand it. Never forget that you don't write code just for yourself, you write code to be read by others, just like I did (tried at least). Cheers!
– Themelis
Nov 21 '18 at 19:21
By the way if you have any questions about the above code snippet just ask here in the comment section.
– Themelis
Nov 21 '18 at 19:22
1
1
Sure that will work, but I wanted to use the least code possible without having to create methods for it. I am a beginner so most of the logic you used is new for me and I don't quite seem to understand everything. I still appreciate your time to help me. Thanks.
– Hugelevin
Nov 21 '18 at 19:17
Sure that will work, but I wanted to use the least code possible without having to create methods for it. I am a beginner so most of the logic you used is new for me and I don't quite seem to understand everything. I still appreciate your time to help me. Thanks.
– Hugelevin
Nov 21 '18 at 19:17
No problem @Hugelevin. By the way, I've split the code in small methods just to be cleared and more understandable. On the way you will learn to break problems into small ones and eventually write your code somehow like this above, so people will understand it. Never forget that you don't write code just for yourself, you write code to be read by others, just like I did (tried at least). Cheers!
– Themelis
Nov 21 '18 at 19:21
No problem @Hugelevin. By the way, I've split the code in small methods just to be cleared and more understandable. On the way you will learn to break problems into small ones and eventually write your code somehow like this above, so people will understand it. Never forget that you don't write code just for yourself, you write code to be read by others, just like I did (tried at least). Cheers!
– Themelis
Nov 21 '18 at 19:21
By the way if you have any questions about the above code snippet just ask here in the comment section.
– Themelis
Nov 21 '18 at 19:22
By the way if you have any questions about the above code snippet just ask here in the comment section.
– Themelis
Nov 21 '18 at 19:22
add a comment |
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1
Have you tried debugging through it to see if it's going through the loops as you expect it to? Once you do that it should be clear to you what should change
– Krease
Nov 20 '18 at 18:07