Question

) Write the code to display the content below using user input. The program Name is Half_XmasTree. This program MUST use (ONLY) for loops to display the output below from 10 to 1 therefore ...1st row prints 10 star 2nd row prints 9… 3rd print 8 stars and so forth... This program is controlled by the user to input the amount of row. A good test condition is the value of ten rows. The user will demand the size of the tree. Remember the purpose of print() and println()

Answer 1

Answer:

Following are the program in java language that is mention below

Explanation:

import java.util.*;  // import package

public class Half_XmasTree // main class

{

public static void main(String args[])  // main method

{

int k,i1,j1; // variable declaration  

Scanner sc2=new Scanner(System.in);   // create the object of scanner

System.out.println("Enter the Number of rows : ");

k=sc2.nextInt(); // Read input by user

for(i1=0;i1<k;i1++)  //iterating the loop

{

for(j1=0;j1<i1;j1++)  // iterating the loop

System.out.print(" ");

for(int r=k-i1;r>0;r--)  //iterating loop

System.out.print("*");  // print *

System.out.println();

}

}

}

Output:

Following are the attachment of output

Following are the description of program

• Declared a variable k,i1,j1 as integer type .
• Create a instance of scanner class "sc2" for taking the input of the rows.
• Read the input of row in the variable "K" by using nextInt() method .
• We used three for loop for implement this program .
• In the last loop we print the * by using system.println() method.