pyramid number pattern in Java using for loop
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pyramid number pattern in Java using for loop
pyramid number pattern in Java using for loop
In this tutorial, we will dicuss pyramid number pattern in Java using for loop
Pyramid Pattern 1
Program
import java.util.Scanner;
public class Pyramid_pattern1{
public static void main(String args[]){
Scanner sc=new Scanner(System.in); //Scanner class in java
System.out.print("Enter the rows you want:");
int rows=sc.nextInt();
System.out.println("");
for (int i=1; i<=rows; i++){//outer forloop
for (int j=1; j<=(rows-i)*2; j++){
System.out.print(" ");//create initial space for pyramid shape
}
for (int k=i; k>=1; k--){//inner for loops
System.out.print(" "+k);//create left half
}
for (int l=2; l<=i; l++){
System.out.print(" "+l); //create right half
}//end outer for loop
System.out.println();
}
}
}
When the above code is executed, it produces the following results:
option 1
Enter the rows you want: 5
1
2 1 2
3 2 1 2 3
4 3 2 1 2 3 4
5 4 3 2 1 2 3 4 5
option 2
Enter the rows you want: 9
1
2 1 2
3 2 1 2 3
4 3 2 1 2 3 4
5 4 3 2 1 2 3 4 5
6 5 4 3 2 1 2 3 4 5 6
7 6 5 4 3 2 1 2 3 4 5 6 7
8 7 6 5 4 3 2 1 2 3 4 5 6 7 8
9 8 7 6 5 4 3 2 1 2 3 4 5 6 7 8 9
Pyramid Pattern 2
Program
import java.util.Scanner;
public class Pyramid_pattern2{
public static void main(String args[]){
Scanner sc=new Scanner(System.in); //Scanner class in java
System.out.print("Enter the rows you want: ");
int rows=sc.nextInt();//get input from user
System.out.println("");
for(int i=1; i<=rows; i++){
for(int j=0; j<rows-i; j++){//create initial space for pyramid shape
System.out.print(" ");
}
for(int k=1; k<i; k++){
System.out.print(k);//create right half
}
for(int l=i; l>=1; l--){
System.out.print(l);//create left half
}
System.out.print("\n");
}
}
}
When the above code is executed, it produces the following results:
Option 1
Enter your rows you want :5
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
Option 2
Enter the rows you want: 9
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 1
1 2 3 4 5 6 7 6 5 4 3 2 1
1 2 3 4 5 6 7 8 7 6 5 4 3 2 1
1 2 3 4 5 6 7 8 9 8 7 6 5 4 3 2 1
Pyramid Pattern 3
Program
import java.util.Scanner;
public class Pyramid_pattern3{
public static void main(String args[]){
Scanner sc=new Scanner(System.in); //Scanner class in java
System.out.print("Enter the rows you want");
int rows=sc.nextInt();
System.out.println("");
for(int i=1; i<=rows; i++){
for(int j=0; j<rows-i; j++){
System.out.print(" ");
}
for(int k=1; k<=i; k++){
System.out.print(k+" ");
}
System.out.print("\n");
}
}
}
When the above code is executed, it produces the following results:
Option 1
1
1 2
1 2 3
1 2 3 4
1 2 3 4 5
Option 2
1
1 2
1 2 3
1 2 3 4
1 2 3 4 5
1 2 3 4 5 6
1 2 3 4 5 6 7
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8 9
Pyramid Pattern 4
Program
import java.util.Scanner;
public class Pyramid_pattern4{
public static void main(String args[]){
Scanner sc=new Scanner(System.in); //Scanner class in java
System.out.print("Enter the rows you want");
int rows=sc.nextInt();
System.out.println("");
for (int i=1; i<=rows; i++){
for (int j=1; j<=rows; j++){
System.out.print(" ");
}
rows--;
for (int k=1; k<=i; k++){
System.out.print(i+" ");
}
System.out.println();
}
}
}
When the above code is executed, it produces the following results:
1 2 2 3 3 3 4 4 4 4 5 5 5 5 5
Pyramid Pattern 5
Program
import java.util.Scanner;
public class Pyramid_pattern5{
public static void main(String args[]){
Scanner sc=new Scanner(System.in); //Scanner class in java
System.out.print("Enter the rows you want");
int rows=sc.nextInt();
System.out.println(" ");
int i,j,k,l=1;
for(i=1; i<=rows; i++ ){
for(j=1; j<=rows-i; j++){
System.out.print(" ");
}
for(k=1; k<=i; k++,l++){
System.out.print(l+" ");
}
System.out.println(" ");
}
}
}
When the above code is executed, it produces the following results:
1
2 3
4 5 6
7 8 9 10
11 12 13 14 15
16 17 18 19 20 21
22 23 24 25 26 27 28
29 30 31 32 33 34 35 36
Pyramid Pattern 6
Program
import java.util.Scanner;
public class Pyramid_pattern6{
public static void main(String args[]){
Scanner sc=new Scanner(System.in); //Scanner class in java
System.out.print("Enter the rows you want");
int rows=sc.nextInt();//taking rows from user
System.out.println(" ");
System.out.print("Here your pattern\n");
int count=1; //initializing count with 1
int i,j;//variable declaration
for(i=rows; i>=1; i-- ){//outer for loop(parent)
for(j=1; j<=i*2; j++){
System.out.print(" ");//create space from te begining of each row
}//inner for loop 1(child)
for(j=i; j<=rows; j++){//print right part of Piramid
System.out.print(j+" ");
}//inner for loop 2
for(j=rows-1; j>=i; j--){
System.out.print(j+" "); //print left part of Piramid
}//inner for loop 3
System.out.println();
count++;//count increse with 1
}
}
}
When the above code is executed, it produces the following results:
Enter the rows of you want
Here your pattern
9
8 9 8
7 8 9 8 7
6 7 8 9 8 7 6
5 6 7 8 9 8 7 6 5
4 5 6 7 8 9 8 7 6 5 4
3 4 5 6 7 8 9 8 7 6 5 4 3
2 3 4 5 6 7 8 9 8 7 6 5 4 3 2
1 2 3 4 5 6 7 8 9 8 7 6 5 4 3 2 1
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