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Java program to generate pattern of Equilateral triangle or full pyramid using the number and for loop


        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

Equilateral triangle or full pyramid using the number and for loop

Program
import java.util.*;
public class Main
{
public static void main(String[] args) {
int i,j,k,l;
for (i = 1; i <= 5; i++)
{
for(k = 5; k >= i; k--)
{
System.out.print(" ");
}
for (j = 1; j <= i; j++)
{
System.out.print(j);
}
for (l = j - 2; l > 0; l--)
{
System.out.print(l);
}
System.out.println();
 
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Input
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