Java program to print numbers in triangle and pyramid vice
Program 1
package com.candidjava;
import java.util.Scanner;
public class PatternNuberPyramidPrevRev
{
public static void main(String args[])
{
int s = 1;
int n;
Scanner sc = new Scanner(System.in);
System.out.println("Enter the N values");
n = sc.nextInt();
for (int i = 1; i <= n; i++)
{
while (s <= i)
{
System.out.print(s);
s++;
}
s--;
while (s > 1)
{
System.out.print(--s);
}
System.out.println();
}
}
}
Output 1
Enter the N values
5
1
121
12321
1234321
123454321
Program 2
package com.candidjava;
import java.util.Scanner;
public class PatternNumberPyramid
{
public static void main(String args[])
{
int i, j, n;
Scanner sc = new Scanner(System.in);
System.out.println("Enter the Row value n");
n = sc.nextInt();
for (i = 1; i <= n; i++)
{
for (j = 1; j <= i; j++)
System.out.print(" " + j);
System.out.print("\n");
}
}
}Output 2
Enter the Row value n
5
1
1 2
1 2 3
1 2 3 4
1 2 3 4 5
Program 3
package com.candidjava;
public class PatternNumberPyramidUptoN
{
public static void main(String args[])
{
{
int i, j, n = 1;
for (i = 0; i < 5; i++)
{
for (j = 0; j <= i; j++)
{
System.out.print(n + " ");
n++;
}
System.out.println();
}
}
}
}
Output 3
1
2 3
4 5 6
7 8 9 10
11 12 13 14 15
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