Star Pattern Programs In With Java
import java.util.Scanner;
public class RightHalfPyramid{
public static void main(String[] args) {
System.out.println("Enter the number of rows for pattern: ");
Scanner sc = new Scanner(System.in); // taking the input with scanner
int rows = sc.nextInt();
for(int row = 1; row <= rows; ++row) {
for(int col = 1; col <= row; ++col) {
System.out.print("* ");
}
System.out.println();
sc.close();
}
}
Enter the number of rows for pattern: 5
*
* *
* * *
* * * *
* * * * *
import java.util.Scanner;
public class LeftHalfPyramid
{
public static void main(String[] args)
{
System.out.println("Enter the number of rows for pattern: ");
Scanner sc = new Scanner(System.in); // taking the input with scanner
int rows = sc.nextInt();
for (int row=1; row<=rows; row++)
{
// Printing space in decreasing order
for (int col=rows; col>row; col--)
{
System.out.print(" ");
}
// Printing star in increasing order
for (int star=1; star<=row; star++)
{
System.out.print("*");
}
System.out.println();
}
sc.close();
}
}
Enter the number of rows for pattern: 5
*
**
***
****
*****
import java.util.Scanner;
public class FullPyramid
{
public static void main(String[] args)
{
System.out.println("Enter the number of rows for pattern: ");
Scanner sc = new Scanner(System.in); // taking the input with scanner
int rows = sc.nextInt();
for (int row=1; row<=rows; row++)
{
// Print space in decreasing order
for (int col=rows; col>row; col--)
{
System.out.print(" ");
}
// Print star in increasing order
for (int star=1; star<=row; star++)
{
System.out.print("* ");
}
System.out.println();
}
sc.close();
}
}
Enter the number of rows for pattern: 5
*
* *
* * *
* * * *
* * * * *
import java.util.Scanner;
public class InvertedHalfPyramid {
public static void main(String[] args) {
System.out.println("Enter the number of rows for pattern: ");
Scanner sc = new Scanner(System.in); // taking the input with scanner
int rows = sc.nextInt();
for(int row = rows; row >= 1; --row) {
for(int col = 1; col <= row; ++col) {
System.out.print(" * ");
}
System.out.println();
}
sc.close();
}
}
Enter the number of rows for pattern: 5
* * * * *
* * * *
* * *
* *
*
import java.util.Scanner;
public class InvertedHalfPyramid
{
public static void main(String[] args)
{
System.out.println("Enter the number of rows for pattern: ");
Scanner sc = new Scanner(System.in); // taking the input with scanner
int rows = sc.nextInt();
for (int row= rows; row>= 1; row--)
{
for (int col=rows; col>row;col--)
{
System.out.print(" ");
}
for (int count=1;count<=row;count++)
{
System.out.print("*");
}
System.out.println("");
}
sc.close();
}
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Output for the above program
Enter the number of rows for pattern: 5
*****
****
***
**
*
import java.util.Scanner;
public class InvertedFullPyramid
{
public static void main(String[] args)
{
System.out.println("Enter the number of rows for pattern: ");
Scanner sc = new Scanner(System.in); // taking the input with scanner
int rows = sc.nextInt();
for (int row= rows; row>= 1; row--)
{
for (int col=rows; col>row;col--)
{
System.out.print(" ");
}
for (int count=1;count<=row;count++)
{
System.out.print(" *");
}
System.out.println("");
}
sc.close();
}
}
Enter the number of rows for pattern: 5
* * * * *
* * * *
* * *
* *
*
import java.util.Scanner;
public class Diamond
{
public static void main(String[] args)
{
// Scanner object
Scanner scanner = new Scanner(System.in);
// taking the number of rows with the scanner
System.out.println("Enter the number of rows for pattern: ");
int rows = scanner.nextInt();
for (int row=1; row<=rows; row++)
{
// Print space in decreasing order
for (int col=rows; col>row; col--)
{
System.out.print(" ");
}
// Print star in increasing order
for (int count=1; count<=(row * 2) -1; count++)
{
System.out.print("*");
}
System.out.println();
}
for (int row=rows-1; row>=1; row--)
{
// Printing space in increasing order
for (int col=rows-1; col>=row; col--)
{
System.out.print(" ");
}
// Printing stars in decreasing order
for (int count=1; count<=(row * 2) -1; count++)
{
System.out.print("*");
}
System.out.println();
}
scanner.close();
}
}
Enter the number of rows for pattern: 5
*
***
*****
*******
*********
*******
*****
***
*
import java.util.Scanner;
public class SandGlass {
public static void main(String[] args) {
// scanner object
Scanner sc = new Scanner(System.in);
System.out.println("Enter the number of rows for pattern: ");
// taking the number of rows with scanner
int rows = sc.nextInt();
for (int row = 0; row <= rows - 1; row++) {
for (int col = 0; col < row; col++) {
System.out.print(" ");
}
for (int count = row; count <= rows - 1; count++) {
System.out.print("* ");
}
System.out.println("");
}
for (int row = rows - 1; row >= 0; row--) {
for (int col = 0; col < row; col++) {
System.out.print(" ");
}
for (int count = row; count <= rows - 1; count++) {
System.out.print("* ");
}
System.out.println("");
}
sc.close();
}
}
Enter the number of rows for pattern: 5
* * * * *
* * * *
* * *
* *
*
*
* *
* * *
* * * *
* * * * *
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After the star pattern programs, we will now see the numeric pattern programs in java
Numeric Pattern Programs With Java
import java.util.Scanner;
public class Main
{
public static void main(String[] args)
{
// scanner object
Scanner sc = new Scanner(System.in);
System.out.println("Enter the number of rows for pattern: ");
int n = sc.nextInt(); // taking input with scanner sc
int row, col,number;
for(row=0; row<n; row++) // outer loop for rows
{
number=1;
for(col=0; col<=row; col++) // inner loop for rows
{
// adding a space after number
System.out.print(number+ " ");
//incrementing value of number
number++;
}
// printing an empty line
System.out.println();
}
}
}
Enter the number of rows for pattern:
5
1
1 2
1 2 3
1 2 3 4
1 2 3 4 5
import java.io.*;
import java.util.Scanner;
public class NumberPattern {
public static void printNums(int num) {
// initialising starting number
int row, col, number = 1;
for (row = 0; row < num; row++) {
for (col = 0; col <= row; col++) {
// // adding a space after number
System.out.print(number + " ");
// incrementing number at every column
number = number + 1;
}
// ending line after each row
System.out.println();
}
}
public static void main(String args[]) {
// scanner object
Scanner sc = new Scanner(System.in);
System.out.println("Enter the number of rows for pattern: ");
int num = sc.nextInt(); // taking input with scanner sc
printNums(num);
sc.close();
}
}
Enter the number of rows for pattern: 6
1
2 3
4 5 6
7 8 9 10
11 12 13 14 15
16 17 18 19 20 21
import java.io.*;
import java.util.Scanner;
public class PascalPattern {
public static void main(String[] args) {
//scanner object
Scanner sc = new Scanner(System.in);
System.out.println("Enter the number of rows pattern: ");
// taking input with scanner
int rows = sc.nextInt();
int number = 1;
for(int row = 0; row < rows; row++) {
for(int space = 1; space < rows - row; ++space) {
System.out.print(" ");
}
for(int col = 0; col <= row; col++) {
if (col == 0 || row == 0)
number = 1;
else
number = number * (row - col + 1) / col;
System.out.printf("%4d", number);
}
// printing new line after iterations
System.out.println();
}
}
}
Enter the number of rows for pattern: 6
1
1 1
1 2 1
1 3 3 1
1 4 6 4 1
1 5 10 10 5 1
import java.util.Scanner;
public class RepeatedPattern
{
public static void main(String[] args)
{
Scanner sc = new Scanner(System.in); //Taking rows value from the user
System.out.println("Enter the number of rows for pattern: ");
int rows = sc.nextInt();
for (int i = 1; i <= rows; i++)
{
for (int j = 1; j <= i; j++)
{
System.out.print(i+" ");
}
System.out.println();
}
sc.close();
}
}
Enter the number of rows for pattern: 6
1
2 2
3 3 3
4 4 4 4
5 5 5 5 5
6 6 6 6 6 6
import java.io.*;
import java.util.Scanner;
public class HalfPyramid {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in); // Scanner Object
System.out.println("Enter the number of rows for pattern: ");
// Taking rows value from the user with scanner
int rows = sc.nextInt();
for(int row = rows; row >= 1; --row) {
for(int col = 1; col <= row; ++col) {
System.out.print(col + " ");
}
System.out.println();
}
sc.close();
}
}
Enter the number of rows for pattern: 6
1 2 3 4 5 6
1 2 3 4 5
1 2 3 4
1 2 3
1 2
1
import java.io.*;
import java.util.Scanner;
public class MainClass
{
public static void main(String[] args)
{
Scanner sc = new Scanner(System.in); // Scanner Object
System.out.println("Enter the number of rows for pattern: ");
int rows = sc.nextInt(); // Taking rows value from the user with scanner
for (int row = 1; row <= rows; row++)
{
for (int col = 1; col <= row; col++)
{
System.out.print(col+" ");
}
for (int col = row-1; col >= 1; col--)
{
System.out.print(col+" ");
}
System.out.println();
}
sc.close();
}
}
Enter the number of rows for pattern: 6
1
1 2 1
1 2 3 2 1
1 2 3 4 3 2 1
1 2 3 4 5 4 3 2 1
1 2 3 4 5 6 5 4 3 2 1Character Pattern Programs With Java
import java.io.*;
import java.util.Scanner;
public class RightAlphaTri
{
public static void main(String[] args)
{
int alphabet = 65; //ASCII value of A is 65
Scanner sc = new Scanner(System.in); // Scanner Object
System.out.println("Enter the number of rows for pattern: ");
// Taking rows value from the user with a scanner
int rows = sc.nextInt();
for (int row = 0; row <= rows; row++)
{
for (int col = 0; col <= row; col++)
{
System.out.print((char) (alphabet + col) + " ");
}
System.out.println();
}
sc.close();
}
}
Enter the number of rows for pattern: 6
A
A B
A B C
A B C D
A B C D E
A B C D E F
A B C D E F G
import java.io.*;
import java.util.Scanner;
public class Edureka
{
public static void main(String[] args)
{
int alphabet = 65;
Scanner sc = new Scanner(System.in); // Scanner Object
System.out.println("Enter the number of rows for pattern: ");
// Taking rows value from the user with a scanner
int rows = sc.nextInt();
for (int row = 0; row<= rows; row++)
{
for (int col = 0; col <= row; col++)
{
System.out.print((char) alphabet + " ");
}
alphabet++;
System.out.println();
}
sc.close();
}
}
Enter the number of rows for pattern: 6
A
B B
C C C
D D D D
E E E E E
F F F F F F
import java.io.*;
import java.util.Scanner;
public class Main {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in); // Scanner Object
System.out.println("Enter the number of rows for pattern: ");
// Taking rows value from the user with scanner
int rows = sc.nextInt();
int alphabet = 65;
for (int row = 0; row <= rows; row++) {
for (int col = 8; col > row; col--) {
System.out.print(" ");
}
for (int count = 0; count <= row; count++) {
System.out.print((char) (alphabet + count) + " ");
}
System.out.println();
}
sc.close();
}
}
Enter the number of rows for pattern: 6
A
A B
A B C
A B C D
A B C D E
A B C D E F
A B C D E F G This was all printing patterns using java. To get in-depth knowledge of core Java and advanced java, J2EE SOA training along with its various applications and real-time projects using Servlets, Spring with Aspect-Oriented Programming (AOP) architecture, Hibernate Framework, and Struts through JDBC you can enroll in Certified Java Training in Chennai or Certified Java Training in Bangalore by FITA or a virtual class for this course, at an affordable price, bundled with real-time projects, certification, support, and career guidance assistance and an active placement cell, to make you an industry required certified java developer.
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