In this “Print Plus Pattern” – We have written Java programs to print/draw Plus pattern by using different types of Java loops and you can execute and try these Java program through your IDE. This is most [100+] Frequently Asked Java Program on beginner level to check you Java Programming skills and Concept.
Plus Pattern Example
Logic: To draw Plus Pattern through Java program, there would be one line of the vertical and horizontal. To draw vertical line just double (2*n) the inserted size and run one outer loop for each rows. Inside of this loop put condition as when i!=n, run internal loop print character if (j=n) else print space. When i=n then print 2*n characters for complete row.
This post covers following ways to print Plus Pattern:
- Print Plus Pattern Java Program: Using for Loop
- Print Plus Pattern Java Program: Using While Loop
- Print Plus Pattern Java Program: Using Do-While Loop
Plus Pattern Java Program: For Loop
This Plus Pattern Java Program is following the below logic:
- The outer “for” loop first check the condition ( i<=n*2-1), if this condition is true then it check the if condition (i!=n) is true, then first inner “for” loop will be executed otherwise else part will execure for 2nd “for” loop.
- The first inner loop, if the condition (j==n) is true then it will display the symbol otherwise display the spaces. This loop will execute until the condition is satisfies.
- The second inner “for” loop will execute if the condition at the outer “for” loop is false, in the loop if condition is true display the symbol as given.
package _1_patterns.plus;
import java.util.Scanner;
public class PlusPatternForLoop {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
System.out.println("Enter Pattern Size : ");
int size = sc.nextInt();
System.out.print("Enter Symbol : ");
char symbol = sc.next().charAt(0);
drawPlusPattern(size, symbol);
// Close Scanner
sc.close();
}
private static void drawPlusPattern(int n, char c) {
for (int i = 1; i <= n * 2 - 1; i++) {
if (i != n)
for (int j = 1; j <= n; j++) {
if (j == n)
System.out.print(c);
System.out.print(" ");
}
else
for (int j = 1; j <= n * 2 - 1; j++) {
System.out.print(c);
}
System.out.println();
}
}
}
Output
Enter Pattern Size :
9
Enter Symbol : $
$
$
$
$
$
$
$
$
$$$$$$$$$$$$$$$$$
$
$
$
$
$
$
$
$
Plus Pattern Java Program: While Loop
This Plus Pattern Java Program is following the below logic:
- The outer “while” loop first check the condition ( i<=n*2-1), if this condition is true then it check the if condition (i!=n) is true, then first inner “while” loop will be executed otherwise else part will execute for 2nd “while” loop.
- The first inner “while” loop, if the condition (j==n) is true then it will displays the symbol otherwise display the spaces. This loop will execute untill the condition is satisfies.
- The second inner “while” loop will execute if the condition at the outer “while” loop is false, in the loop if condition is true display the symbol as given.
package _1_patterns.plus;
import java.util.Scanner;
public class PlusPatternForLoop {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
System.out.println("Enter Pattern Size : ");
int size = sc.nextInt();
System.out.print("Enter Symbol : ");
char symbol = sc.next().charAt(0);
drawPlusPattern(size, symbol);
// Close Scanner
sc.close();
}
private static void drawPlusPattern(int n, char c) {
int i = 1;
int j;
while (i <= n * 2 - 1) {
if (i != n) {
j = 1;
while (j <= n) {
if (j == n)
System.out.print(c);
System.out.print(" ");
j++;
}
} else {
j = 1;
while (j <= n * 2 - 1) {
System.out.print(c);
j++;
}
}
System.out.println();
i++;
}
}
}
Output
Enter Pattern Size :
7
Enter Symbol : #
#
#
#
#
#
#
#############
#
#
#
#
#
#
Plus Pattern Java Program: Do-While Loop
This Plus Pattern Java Program is following the below logic:
- The first outer “do-while” loop will execute, then checks the condition (i<=n*2-1).
- If condition (i!=n) is true, then first inner “do-while” loop will be executed otherwise second inner “do-while” loop will be executed.
- The outer “do-while” loop executes until the condition (i<=n*2-1) is false.
package _1_patterns.plus;
import java.util.Scanner;
public class PlusPatternForLoop {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
System.out.println("Enter Pattern Size : ");
int size = sc.nextInt();
System.out.print("Enter Symbol : ");
char symbol = sc.next().charAt(0);
drawPlusPattern(size, symbol);
// Close Scanner
sc.close();
}
private static void drawPlusPattern(int n, char c) {
int i = 1;
int j;
do {
if (i != n) {
j = 1;
do {
if (j == n) {
System.out.print(c);
}
System.out.print(" ");
j++;
} while (j <= n);
} else {
j = 1;
do {
System.out.print(c);
j++;
} while (j <= n * 2 - 1);
}
System.out.println();
i++;
} while (i <= n * 2 - 1);
}
}
Output
Enter Pattern Size :
8
Enter Symbol : ^
^
^
^
^
^
^
^
^^^^^^^^^^^^^^^
^
^
^
^
^
^
^
Hope this post helps you to implement the Plus Pattern through Java Program. Please share your comments.
Happy Learning!!!
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