Program for Full Pyramid in Java

Program for Full Pyramid and size can be input by user.

import java.util.*;
public class Pyramid
{
    public static void main(String Args[])  
    {
        int n;
        Scanner sc = new Scanner(System.in);
               n= sc.nextInt();
   for (int i = 1; i <= n; i++)
            {
                  for (int j = 0; j < (n - i); j++)
                        System.out.print("   ");
                  for (int j = 1; j <= i; j++)
                        System.out.print(" * ");
                  for (int k = 1; k < i; k++)
                        System.out.print(" * ");
                  System.out.println();
            }

            for (int i = n - 1; i >= 1; i--)
            {
                  for (int j = 0; j < (n - i); j++)
                        System.out.print("   ");
                  for (int j = 1; j <= i; j++)
                        System.out.print(" * ");
                  for (int k = 1; k < i; k++)
                        System.out.print(" * ");
                  System.out.println();
            }

            System.out.println();
     
    }
 
}

Program for Right Triangle in Java

This is the program for Triangle and on place of "*" you can use any other variable as you want to print.

public class Triangle
{
    public static void main(String Args[])  
    {
    int i,j;
    for(i=0;i<10;i++)
 
    {
        System.out.println(" * ");
        for (j=0;j<=i;j++)
        {
            System.out.print(" * ");
       }}

    }
}

Program for Switch case with two cases

#include<stdio.h>
#include<conio.h>
void main()
{
int i;
clrscr();
i=2;
switch(i)
{
case 1:
{
printf("case 1");
}
case 2:
{
printf("case 2");
break;
}
default:
{
printf("default");
}
getch();
}
}

Program for greatest of four numbers in java

Program is created using Switch-case and if else both. Switch case can be easily removed from this program.


import java.util.*;
public class Switchcase
{
    public static void main (String args[])
    {
        Scanner sc = new Scanner (System.in);
    System.out.println("please enter value of a");
    int a = sc.nextInt();
     System.out.println("please enter value of b");
    int b = sc.nextInt();
     System.out.println("please enter value of c");
    int c = sc.nextInt();
     System.out.println("please enter value of d");
    int d = sc.nextInt();
  int e=1;
  switch(1)
  {
      case 1:
          if (a>b&&a>c&&a>d)
          {
               
              System.out.println("Number a is greater than all");
          }
    else
     {
      if(b>a&&b>c&&b>d)
     {
          System.out.println("Number b is greater than all");
      }
       else
      {
      if(c>a&&c>b&&c>d)
      {
        System.out.println("Number c is greater than all");
      }
      else
      {
          if(d>a&&d>b&&d>c)
          {
              System.out.println("Number d is greater than all");
          }
            else
          {
                System.out.println("All numbers are equal");
      }
     }
    }
   }
  }
 }
}