Question

WRITE A JAVA PROGRAM TO PRINT THE FOLLOWING PATTERN!

Answer 1

Code:-

import java.util.*;

class Pattern

{

static void main (int n)

{

int k[]=new int[n];

Scanner sc=new Scanner (System.in);

System.out.println("Enter the numbers");

for(int a=0;a<n;a++)

{

k[a]=sc.nextInt();

}

for(int b=n;b>0;b--)

{

for(int j=0;j<b;j++)

{

System.out.print(k[j] + "\t");

if(j!=(b-1))

{

k[j]+=k[j+1];

}

}

System.out.println();

}

}

}

___________________________

Input :-

1

3

2

4

5

Output :-

1 3 2 4 5

4 5 6 9

9 11 15

20 26

46

(Proof in the Attachment)

Answer 2

import java.util.Scanner;

public class Patterns {

static void printAdjacentSum(int[ ] array) {

int length = array.length - 1;

if (length = = 0) return;

int[ ] newArray = new int[length];

for (int i = 0; i < length; i++) {

newArray[i] = array[i] + array[i + 1];

System.out.print(newArray[i] + " ");

}

System.out.println();

printAdjacentSum(newArray);

}

public static void main(String[ ] args) {

System.out.print("Enter n - ");

Scanner sc = new Scanner(System.in);

int n = sc.nextInt( );

System.out.println("Enter numbers - ");

int[ ] array = new int[n];

for (int i = 0; i < n; i++)

array[i] = sc.nextInt( );

printAdjacentSum(array);

}

}