Triangle Pattern in Java

In this class, We discuss Triangle Pattern in Java.

The reader should have prior knowledge of loops in Java. Click Here.

Question:

Given an integer in variable N.

If N = 5, we need to display it as shown below.

1

12

123

1234

12345

We must write a program to display the above output based on the N value.

If N = 6, we need to display six lines of output.

The below diagram shows the program.

Logic:

If N = 5, we display five lines.

If N = 6, we display six lines.

To display the values in a line, we need a loop.

We need to display N lines, so we need a nested loop.

We need a loop to display numbers 1,2,3, 4, and 5.

The above loop should be repeated N times.

The outer loop is used to count the lines.

The inner loop is used to display the numbers.

If i = one, the inner loop should display one number.

If i = two, the inner loop should display numbers 1 and 2.

So we use the i value inside the inner loop to display numbers.

Please understand the above point carefully.