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pattern21.java

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package Patterns;

import java.util.*;

/*

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*/

public class pattern21

{

public static void main(String[] args)

{

Scanner sc = new Scanner(System.in);

System.out.println("How many rows you want in this pattern?");

int rows = sc.nextInt();

//Printing upper half of the pattern

for (int i = 1; i <= rows; i++){

for (int j = 1; j < i; j++) {

System.out.print(" ");

}

for (int j = i; j <= rows; j++){

System.out.print(j);

}

System.out.println();

}

for (int i = rows-1; i >= 1; i--){

for (int j = 1; j < i; j++){

System.out.print(" ");

}

for (int j = i; j <= rows; j++){

System.out.print(j);

}

System.out.println();

}

sc.close();

}

}