Java Program for Diamond Star Pattern
Printing Diamond Star Pattern
In this program we’re going to code diamond star pattern program .
In this program we’re taking input from user and store in the variable names as n and then we will run a for loop start from j=n to j>i+1 and then print spaces after that take a j from loop again start from j=0 to j<=i*2 after that print star statement and then again take another for loop start from i=n to i>0 and then take a for loop star from k=n to k– and then print spaces after that take another loop to print star
Algorithm:
- Enter the number input from the user and store it in any variable.(‘n‘ in this case).
- Run a loop ‘n’ number of times to iterate through each of the rows. From i=0 to i<n. The loop should be structured as for( i=0 ; i
- Inside main loop take another loop start from j=n to j– and then print System.out.println(“”);
- After this inside main loop take another loop to print stars start from j=0 to j++ and then print star System.out.println(“*”)
- After 1st mail loop take another 2nd main loop start from i=n to i–
- Inside this take 1st inner loop start from k=n to k– and then print spaces System.out.print(” “);
- After this take another inner loop to print stars start from j=0 to j++ System.out.print(“*”);
Code in Java:
import java.util.Scanner; public class Pattern1 { public static void main(String[] args) { Scanner sc = new Scanner(System.in); System.out.println("Enter No"); int n=sc.nextInt(); for (int i=0; i<n; i++){ for (int j=n; j>i+1; j--) System.out.print(" "); for (int j=0; j<=i*2; j++ ) System.out.print("*"); System.out.println(); } for(int i=n;i>0;i--) { for(int k=n;k>i;k--) System.out.print(" "); for(int j=0;j<i*2-1;j++) System.out.print("*"); System.out.println(); } } } This code is contributed by Shubham Nigam (Prepinsta Placement Cell Student)
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import java.util.Scanner;
public class Patterns{
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
System.out.println(“Enter number : “);
int row = sc.nextInt();
for(int i=1; i<=row; i++) {
for(int j=1; j<=row-i; j++)
System.out.print(" ");
for(int j=1; j=1; i–) {
for(int j=row-1; j>=i; j–)
System.out.print(” “);
for(int j=1; j<=2*i-1; j++)
System.out.print("*");
System.out.println();
}
}
}
package patternPrinting;
import java.util.Scanner;
public class DiamondStarPattern {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
int n = sc.nextInt(); // n represents the number of rows for the upper half (excluding the middle line)
// Combined loop for upper and lower halves
for (int i = 0; i < 2 * n – 1; i++) {
int currentRow = i < n ? i : 2 * n – 2 – i; // Mirror row index for the lower half
// Printing spaces
for (int j = 0; j < n – currentRow – 1; j++) {
System.out.print(" ");
}
// Printing stars
for (int j = 0; j < 2 * currentRow + 1; j++) {
System.out.print("*");
}
// Move to the next line
System.out.println();
}
}
}
import java.util.*;
class daimondpattern
{
public static void main(String ar[])
{
int i,j;
Scanner sc=new Scanner(System.in);
int n=sc.newInt();
int l;
for(i=-n;i<=n;i++)
{
if(i<0) {
l=-i;
}
else
{
l=i;
}
for(j=0;j<l;j++)
{
System.out.print(" ");
}
for(j=0;j<n-l+1;j++)
{
System.out.print("* ");
}
System.out.println();
}
}
}
import java.util.*;
public class Main
{
public static void main(String[] args)
{
int n=5;
for(int i=1; i<=n; i++)
{
for(int j=1; j<=5-i+1; j++)
{
System.out.print(" ");
}
for(int j=1; j<=(2*i-1); j++)
{
System.out.print("*");
}
System.out.println();
}
for(int i=1; i<=n; i++)
{
for(int j=1; j<=i; j++)
{
System.out.print(" ");
}
for(int j=1; j<=(2*n+1)-(2*i); j++)
{
System.out.print("*");
}
System.out.println();
}
}
}
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import java.util.*;
public class Main{
public static void main(String[] args){
int n = new Scanner(System.in).nextInt();
int count = 1;
for(int i=1;i<=n;i++){
for(int j=1;j<=n-i;j++) System.out.print(" ");
for(int k=1;k=1;i–){
for(int j=1;j<=n-i;j++) System.out.print(" ");
for(int k=1;k<=count;k++) System.out.print("*");
count -= 2;
System.out.println();
}
}
}
import java.util.Scanner;
public class DiamondPattern5 {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
System.out.print(“Enter No of Rows : “);
int r = sc.nextInt();
for(int i =1;i<=r;i++){
if(i<=r/2+1) {
for(int j=1;j<=(r/2+1-i);j++) {
System.out.print(" ");
}
for(int k=1;k<=(2*i-1);k++) {
System.out.print("*");
}
}else {
for(int l = 1;l<=i-(r/2+1);l++) {
System.out.print(" ");
}
for(int m =1;m<=(2*r+1)-(2*i);m++) {
System.out.print("*");
}
}
System.out.println();
}
}
}
#java
public static void main(String[] args) {
int n = 5;
for(int i=1; i=i; j–){
System.out.print(” “);
}
for(int j=1; j<=i; j++){
System.out.print("* ");
}
for(int j=1; j<i; j++){
System.out.print("* ");
}
System.out.println();
}
for(int i=1; i<=n; i++){
for(int j=1; j=i; j–){
System.out.print(“* “);
}
for(int j=n-1; j>i; j–){
System.out.print(“* “);
}
System.out.println();
}
}
Thank you prepinsta for publishing my code…
package patternPrinting;
import java.util.Scanner;
public class DiamondStarPattern {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
int n = sc.nextInt(); // n represents the number of rows for the upper half (excluding the middle line)
// Combined loop for upper and lower halves
for (int i = 0; i < 2 * n – 1; i++) {
int currentRow = i < n ? i : 2 * n – 2 – i; // Mirror row index for the lower half
// Printing spaces
for (int j = 0; j < n – currentRow – 1; j++) {
System.out.print(" ");
}
// Printing stars
for (int j = 0; j < 2 * currentRow + 1; j++) {
System.out.print("*");
}
// Move to the next line
System.out.println();
}
}
}