Question

Challenge to programmers.

Write a program in java to display the series.

2 4 1 3 6 8 5 7 10 12 9 11.....N terms.


Restrictions:-
1. You cannot use more than one loop.
2. You can use only one print statement inside for loop.
3. There can be a Maximum of five variables.
4. You can use only one if statement inside the loop(not if-else or if-else-elseif)


This is similar to my previous question but I have added more restrictions in this question.

All the best.

Warning ⚠⚠
Don't give irrelevant /wrong ❌answers or it will be deleted


Legends don't do different things, they do things differently. ​

Answer 1

$\large\mathcal \red \bigstar{\underline{\purple{GIVEN:-}}}$

Write a program in java to display the series.

2 4 1 3 6 8 5 7 10 12 9 11.....N terms.

_____________________________________

$\large\mathcal \red \bigstar{\underline{\green{LOGIC:-}}}$

m. k. => Output.

1. 2 => 2

2. 2+2 => 4

3. 4-3 => 1

4. 1+2 => 3

5. 3+3 => 6

6. 6+2 => 8

7. 8-3 => 5

8. 5+2 => 7

9. 7+3 => 10

10. 10+2 => 12

As Repetition of .....

n+2,n-3,n+2,n+3.............

___________________________________

$\large\bf\blue{CODE:-}$

1.class Series

2.{

3.public static void main(int n)

4.{

5.int m=1;

6.for(int k=2;n>0;n--,m++)

7.{

8.System.out.print(k+"\t");

9.if( m % 2 != 0 )

10.{

11.k+=2;

12.continue;

13.}

14.k-=(k%2==0)?(3):(-3);

15.} //End of for loop

16.}//End of main()

17.}//End of class

_________________________________

Input:-

10

Output:-

2 4 1 3 6 8 5 7 10 12

________________________________

Method 2nd:-

class Series

{

public static void main(int n)

{

int m=1;

for(int k=2;n>0;n--)

{

System.out.print(k+"\t");

switch (m)

{

case 1:

k=k+2;

break;

case 2:

k=k-3;

break;

case 3:

k=k+2;

break;

case 4:

k=k+3;

m=0

break;

}//end of switch statement

m++;

}//end of for loop

}//end of main()

}//end of class

________________________________

$\large\mathcal \red \bigstar{\underline{\red{RESTRICTIONS:-}}}$

1. You cannot use more than one loop.

(Use only once in giving code )

Done✔️

2. You can use only one print statement inside for loop.

(Used once only to print value of k)

Done✔️

3. There can be a Maximum of five variables.

(Used only 3 variables.... namely n,m,k)

Done✔️

4. You can use only one if statement inside the loop(not if-else or if-else-elseif)

(Used only once to check the condition m%2!=0)

Done✔️

Answer 2

• GIVEN:−

Write a program in java to display the series.

2 4 1 3 6 8 5 7 10 12 9 11.....N terms.

_____________________________________

• LOGIC:−

m. k. => Output.

1. 2 => 2

2. 2+2 => 4

3. 4-3 => 1

4. 1+2 => 3

5. 3+3 => 6

6. 6+2 => 8

7. 8-3 => 5

8. 5+2 => 7

9. 7+3 => 10

10. 10+2 => 12

As Repetition of .....

n+2,n-3,n+2,n+3.............

___________________________________

• CODE:−

1.class Series

2.{

3.public static void main(int n)

4.{

5.int m=1;

6.for(int k=2;n>0;n--,m++)

7.{

8.System.out.print(k+"\t");

9.if( m % 2 != 0 )

10.{

11.k+=2;

12.continue;

13.}

14.k-=(k%2==0)?(3):(-3);

15.} //End of for loop

16.}//End of main()

17.}//End of class

_________________________________

Input:-

10

Output:-

2 4 1 3 6 8 5 7 10 12

________________________________

Method 2nd:-

class Series

public static void main(int n)

int m=1;

for(int k=2;n>0;n--)

System.out.print(k+"\t");

switch (m)

case 1:

k=k+2;

break;

case 2:

k=k-3;

break;

case 3:

k=k+2;

break;

case 4:

k=k+3;

m=0

break;

end of switch statement

m++;

end of for loop

end of main()

end of class

________________________________

• RESTRICTIONS:−

1. You cannot use more than one loop.

(Use only once in giving code )

Done✔️

2. You can use only one print statement inside for loop.

(Used once only to print value of k)

Done✔️

3. There can be a Maximum of five variables.

(Used only 3 variables.... namely n,m,k)

Done✔️

4. You can use only one if statement inside the loop(not if-else or if-else-elseif)

(Used only once to check the condition m%2!=0)

Done✔️