Nested for Loops

1. Write a program to generate the following output.

@

@ #

@ # @

@ # @ #

@ # @ # @

2 (i). Write a program in Java to display the following patterns.

1
2 3
4 5 6
7 8 9 10
11 12 13 14 15

2 (ii). Write a program in Java to display the following patterns.

1 * * * *

* 2 * * *

* * 3 * *

* * * 4 *

* * * * 5

2 (iii). Write a program in Java to display the following patterns.

#

* *

# # #

* * * *

# # # # #

2 (iv). Write a program in Java to display the following patterns.

1 * * * *

2 2 * * *

3 3 3 * *

4 4 4 4 *

5 5 5 5 5

2 (v). Write a program in Java to display the following patterns.

$ $ $ $ 5

$ $ $ 4

$ $ 3

$ 2

1

2 (vi). Write a program in Java to display the following patterns.

A B C D E

A B C D

A B C

A B

A

2 (vii). Write a program in Java to display the following patterns.

5 4 3 2 1

4 3 2 1

3 2 1

2 1

1

2 (viii). Write a program in Java to display the following patterns.

I

I C

I C S

I CI S E

2 (ix). Write a program in Java to display the following patterns.

1 2 3 4 5

1 2 3 4

1 2 3

1 2

1

1 2

1 2 3

1 2 3 4

1 2 3 4 5

2 (x). Write a program in Java to display the following patterns.

1 2 3 4 5

2 3 4 5

3 4 5

4 5

5

4 5

3 4 5

2 3 4 5

1 2 3 4 5

3 (i). Distinguish between the following:

break statement and labelled break statement

3 (ii). Distinguish between the following:

continue statement and labelled continue statement

4. Write a program to print the series given below.

8 88 888 8888 88888 888888

5 (i). What will be the value of sum after each of the following nested loops is executed?

int sum = 0;

for (int i = 0; i <= 10; i++)

    for (int j = 0; j <= 10; j++)

          sum += i;

5 (ii). What will be the value of sum after each of the following nested loops is executed?

int sum = 0;

for (int i = 1; i <= 3; i++)

    for (int j = 1; j <= 3; j++)

        sum = sum + (i + j);

6. Write a program to generate a triangle or an inverted triangle till n terms based upon the user's choice of triangle to be displayed.

Example 1

Input:
Type 1 for a triangle and type 2 for an inverted triangle
1
Enter the number of terms
5

Output:

1

2 2

3 3 3

4 4 4 4

5 5 5 5 5

Example 2

Input:
Type 1 for a triangle and type 2 for an inverted triangle
2
Enter the number of terms
6

Output:

6 6 6 6 6 6

5 5 5 5 5

4 4 4 4

3 3 3

2 2

1