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Java Program to Print X Star Pattern
In this article, we will understand how to print X star pattern. The pattern is formed by using multiple for-loops and print statements.
Below is a demonstration of the same: −
Input
Suppose our input is −
Enter the number : 8
Output
The desired output would be −
The X star pattern : X X X X X X X X X X X X X X X X X X X X X X X X X X X X X
Algorithm
Step 1 - START Step 2 - Declare four integer values namely i, j, k and my_input. Step 3 - Read the required values from the user/ define the values Step 4 - Assign value of ‘my_input – 1’ to ‘k’ Step 5 - We iterate through two nested 'for' loops to get space between the characters. Step 6 - After iterating through the innermost loop, we iterate through another 'for' loop. This will help print the required character. Step 7 - Now, print a newline to get the specific number of characters in the subsequent lines. Step 8 - Display the result Step 9 - Stop
Example 1
Here, the input is being entered by the user based on a prompt.
import java.util.Scanner;
import java.util.Scanner;
public class XStar{
public static void main(String []args){
int i, j, k, my_input;
System.out.println("Required packages have been imported");
Scanner my_scanner = new Scanner(System.in);
System.out.println("A reader object has been defined ");
System.out.print("Enter the number : ");
my_input = my_scanner.nextInt();
System.out.print("The X star pattern : ");
k=my_input*2-1;
for( i=1;i<=k;i++){
for( j=1;j<=k;j++){
if(j==i || j==k-i+1)
System.out.print("X");
System.out.print(" ");
}
System.out.println();
}
}
}
Output
Required packages have been imported
A reader object has been defined
Enter the number : 8
The X star pattern : X X
X X
X X
X X
X X
X X
X X
X
X X
X X
X X
X X
X X
X X
X X
Example 2
Here, the integer has been previously defined, and its value is accessed and displayed on the console.
public class XStar{
public static void main(String[] args) {
int i, j, k, my_input;
my_input = 8;
System.out.println("The number of rows is defined as " + my_input);
System.out.print("The X star pattern : ");
k = my_input * 2 - 1;
for (i = 1; i <= k; i++) {
for (j = 1; j <= k; j++) {
if (j == i || j == k - i + 1)
System.out.print("X");
System.out.print(" ");
}
System.out.println();
}
}
}
Output
The number of rows is defined as 8 The X star pattern : X X X X X X X X X X X X X X X X X X X X X X X X X X X X X
Updated on: 25-Jun-2024
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