🔺Java Patterns Programs

Prints a triangle where every number in a row is that row's own parity bit.

Prints a left-aligned triangle built from consecutive alphabet letters instead of stars.

Fills a fixed-size grid with consecutive numbers that keep counting up across every row.

Prints a triangle of consecutive numbers that never resets between rows.

Prints a left-aligned triangle whose row width shrinks, while each row still counts up from 1.

Prints a left-aligned triangle of stars that shrinks by one star per row.

Prints a left-aligned shrinking star triangle by building each row as one string, without a separate inner loop.

Prints a left-aligned growing star triangle by building each row as one string, without a separate inner loop.

Prints a left-aligned triangle where each row counts up from 1.

Prints a solid grid of stars with a separate row count and column count.

Prints a left-aligned triangle where each row repeats its own row number that many times.

Prints a left-aligned triangle of stars that grows by one star per row.

Prints a solid square grid of stars, n rows by n columns.

Prints a triangle where each position alternates between 0 and 1 in a checkerboard pattern.

Prints a diamond built from repeating letters by joining a pyramid to its own mirror image.

Prints a centered pyramid where every row is filled with a single repeating letter.

Prints a diamond shape built from repeated row numbers instead of stars.

Prints a diamond of stars by stacking a pyramid on top of an inverted pyramid.

Prints a diamond outline made of stars, hollow all the way through.

Prints a centered pyramid outline, hollow except for a solid base.

Prints a rectangle outline made of stars, hollow on the inside.

Prints the outline of a slanted parallelogram, leaving its interior empty.

Prints a square outline of stars, hollow on the inside.

Prints a left-aligned triangle outline, hollow except for a solid base.

Prints a wide-narrow-wide star shape by joining an inverted triangle to a regular one.

Prints a centered pyramid of repeating letters upside down, widest row first.

Prints a centered pyramid of repeated row numbers, upside down with its apex at the bottom.

Prints a centered pyramid of stars turned upside down, apex at the bottom.

Prints a growing triangle where each row shows that row number's own multiplication table.

Prints a centered pyramid where every row is filled with that row's own number.

Prints Pascal's triangle centered, so its outline reads as an actual triangle shape.

Prints stars forming a plus sign across a square grid, using the middle row and column.

Prints a centered pyramid of stars, apex at the top.

Prints a slanted parallelogram of stars using increasing indentation per row.

Prints stars forming the letter X across a square grid, using both diagonals.

Prints a butterfly-shaped star pattern using two mirrored triangular wings.

Fills an n x n grid so each concentric ring of cells shares the same number.

Fills an n x n grid with numbers 1 through n squared in clockwise spiral order.

Prints a wavy line of stars that rises to a peak and dips to a trough as it crosses the columns.

Prints a three-row zigzag line of stars that travels up and down across the columns.