square pattern in java
/* Java program to print the following pattern */
Program:
import java.util.*;
public class square_pattern
{
public static void main(String args[])
{
Scanner sc = new Scanner(System.in);
System.out.print("Enter a number of rows: ");
int num = sc.nextInt();
long k=2;
for(int i=1; i<=num; i++)
{
for(int j=1; j<=i; j++)
{
if(j==i)
{
System.out.print(k);
k=k*k;
}
else
{
System.out.print(0+" ");
}
}
System.out.print("\n");
}
}
}
Output:

2
0 4
0 0 16
0 0 0 256
0 0 0 0 65536
Program:
import java.util.*;
public class square_pattern
{
public static void main(String args[])
{
Scanner sc = new Scanner(System.in);
System.out.print("Enter a number of rows: ");
int num = sc.nextInt();
long k=2;
for(int i=1; i<=num; i++)
{
for(int j=1; j<=i; j++)
{
if(j==i)
{
System.out.print(k);
k=k*k;
}
else
{
System.out.print(0+" ");
}
}
System.out.print("\n");
}
}
}
Output:
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