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PATTERNS
package Patterns;
public class PatternX {
public static void main(String[] args) {
int row=9;
int star=9;
int mid=(row+1)/2;
for (int i=1; i <=star; i++) {
for (int j=1; j<=row; j++)
{
if (i==j||j==row-i+1||i==mid||j==mid) {
System.out.print("*");
}else{
System.out.print(" ");
}
}System.out.println();
}
}
}
OUTPUT :
package Patterns;
public class zyphr1 {
public static void main(String[] args) {
int p=1;
// TODO Auto-generated method stub
for (int i = 1; i < 6; i++) {
for (int j = 5; j >= 1; j--) {
if (i==j) {
System.out.print("*");
}else {
System.out.print(j);
}
}System.out.println();
}
}
}
package Patterns;
public class Patternpascal
{
public static void main(String[] args)
{
int row=9;
int space=row-1;
int star=1;
// TODO Auto-generated method stub
for (int i = 1; i <=row; i++) {
for (int j = 1; j <=space; j++) {//print row -1 spaces
System.out.print(" ");
}
for (int k = 1; k<=star; k++) { //star increments as row increment
System.out.print("* ");
}
System.out.println("");
star++;
space--;
}
}
}
package Patterns;
public class Patternplus {
public static void main(String[] args) {
int row=6;
int star=6;
for (int i = 0; i <=row; i++) {
int mid=(row+1)/2;
for (int j = 0; j <=star; j++) {
if (i==mid||j==mid)
{
System.out.print("*");
}else{
System.out.print(" ");
}
}System.out.println("");
}
}
}
output
package Patterns;
public class Patternpascala1b2c3
{
public static void main(String[] args)
{
char ch='a';
int num=1;
int row=9;
int space=row-1;
int star=1;
// TODO Auto-generated method stub
for (int i = 1; i <=row; i++) {
for (int j = 1; j <=space; j++) {//print row -1 spaces
System.out.print(" ");
}
for (int k = 1; k<=star; k++) { //star increments as row increment
int d=i%2;
if(d==0){
System.out.print(ch+" ");}else{
System.out.print(num+" ");
}
}ch++;
num++;
System.out.println("");
star++;
space--;
}
}
}
package Patterns;
public class patternrighttopdowntri {
public static void main(String[] args) {
int star=1;
int row=10;
int mid=(row+1)/2;
int space=mid-1;
// TODO Auto-generated method stub
for (int i = 0; i <=row; i++) {
for (int j = 0; j <=space; j++) {
System.out.print(" ");
}
for (int k = 1; k <=star; k++) {
System.out.print("*");
}System.out.println("");
if (i<mid) {
star++;
space--;
}else{
star--;
space++;
}
}
}
}
package Patterns;
public class Patternhollowsquare
{
public static void main(String[] args)
{
String s = " welcome ";
for (int i = 0; i <=10; i++) {
for (int j = 0; j <=10; j++) {
if(i==0||j==0||i==10||j==10)
{
System.out.print("*");
}else if(j<=1&&i==1){
System.out.print(s);
}else if(j<=1&&i==2){
System.out.print(" to ");
}else if(j<=1&&i==3){
System.out.print(" Qspiders");
}else if(i>3){
System.out.print(" ");
}
}
System.out.println("");
}
}
}
Diamond Patten
class Patterndiamond
{
public static void main(String[] args)
{
int i,j,k;
int p_height=8;
//top pyramid
for (i=1;i<=p_height;i++ )
{
for (k=p_height-1;k>=i;k-- )
{
System.out.print(" ");
}
for (j=1;j<=i ;j++ )
{
System.out.print("* ");
}
System.out.println(" ");
}
//bottom pyramind
for (i=p_height-1;i>=1;i--)
{
for (k=p_height-1;k>=i;k-- )
{
System.out.print(" ");
}
for (j=i;j>=1;j--)
{
System.out.print("* ");
}
System.out.println("");
}
}
}
package Patterns;
public class Patteravatar {
public static void main(String[] args) {
// TODO Auto-generated method stub
for (int i = 0; i < 6; i++) {
for (int j = 0; j < 6; j++) {
if(i==0||j==0||i==5||j==5||i==j){
System.out.print("*");
}else{
System.out.print(" ");
}
}System.out.println();
}
}
}
package Patterns;
public class Patternmidleft {
public static void main(String[] args) {
int row=10;
int star=1;
int mid=(row+1)/2;
// TODO Auto-generated method stub
for (int i = 0; i <= row; i++) {
for (int j = 0; j <star; j++) {
System.out.print("*");
}
System.out.println("");
if(i<mid){
star++;
}else{
star--;
}
}
}
}
package Patterns;
public class Patternspaceandstar {
public static void main(String[] args) {
for (int i = 1; i <=5; i++)
{
for (int j = 1; j <=5; j++)
{
if(i%2==0)
{
System.out.print("* ");
}else
System.out.print(" *");
} System.out.println();
}
}
}
