Question 3.10:Write a program to print following using while loop:
i)
1
222
33333
4444444
ii)
1
212
32123
4321234
543212345
Solution:
1)
package com.company;
import java.util.Scanner;
public class Lab3Problem10i {
public static void main(String[] args)
{
Scanner Obj = new Scanner(System.in);
System.out.print("Enter the size: ");
int n =Obj.nextInt();
for(int i=1;i<=n;i++)
{
for(int j=0;j<=n-i;j++)
{
System.out.print(" ");
}
for(int k=1;k<i*2;k++)
{
System.out.print(i);
}
System.out.println();
}
}
}
2)
package com.company;
import java.util.Scanner;
public class Lab03Problem10b {
public static void main(String[] args) {
Scanner Obj = new Scanner(System.in);
System.out.print("Enter the size: ");
int n = Obj.nextInt();
for (int i=0;i<=n;i++)
{
for(int j=0;j<n-i;j++)
{
System.out.print(" ");
}
for(int k=i;k>1;k--)
{
System.out.print(k);
}
for(int z=1;z<=i;z++)
{
System.out.print(z);
}
System.out.println();
}
}
}
