Create 13.1 Tree Pattern.java

Author: prokrishpatel

13.1 Tree Pattern.java

@@ -0,0 +1,58 @@
+/*
+write a code that accepts an input of integer type, which represents the number of rows to display the Floyds Triangle pattern upto 6 rows. Display “invalid rows” without a pattern if the input given is negative:
+
+1
+2 3
+4 5 6
+7 8 9 10
+11 12 13 14 15
+16 17 18 19 20 21
+
+Input Format
+
+The input should be taken as row number.
+
+Constraints
+
+row number should be positive>0
+
+Output Format
+
+It should print “Invalid rows” if the input taken is zero 0r less than zero.
+
+Sample Input 0
+
+4
+Sample Output 0
+
+1
+2 3
+4 5 6
+7 8 9 10
+*/
+import java.io.*;
+import java.util.*;
+
+public class Solution {
+
+    public static void main(String[] args) {
+        /* Enter your code here. Read input from STDIN. Print output to STDOUT. Your class should be named Solution. */
+        Scanner sc = new Scanner(System.in);
+        int row = sc.nextInt();
+        if(row>0)
+        {
+          int value = 1;
+          for(int i=1;i<=row;i++)
+          {
+              for(int j=1;j<=i;j++)
+                  System.out.print(value++ +" ");
+              System.out.print("\n");
+          }  
+        }
+        else
+        {
+            System.out.print("Invalid rows");
+        }
+        
+    }
+}