在此Java图案程序中,我们展示了使用for循环、while循环和函数打印字母J形状或图案的星星的步骤。
import java.util.Scanner;
public class Example
{
private static Scanner sc;
public static void main(String[] args)
{
sc = new Scanner(System.in);
System.out.print("Enter Rows = ");
int rows = sc.nextInt();
for (int i = 0; i < rows; i++)
{
for (int j = 0; j < rows; j++)
{
if ((i == rows - 1) && (0 < j && j < rows - 1))
{
System.out.printf("*");
}
else if ((j == rows - 1 && i != rows - 1) ||
(i > rows / 2 && j == 0 && i != rows - 1))
{
System.out.printf("*");
}
else {
System.out.printf(" ");
}
}
System.out.println();
}
}
}
Enter Rows = 15
*
*
*
*
*
*
*
*
* *
* *
* *
* *
* *
* *
*************
在此字母J形状或图案程序中,我们将for循环替换为while循环,以便在每个位置打印星星。有关更多字母图案和星星图案程序,请使用超链接。
import java.util.Scanner;
public class Example
{
private static Scanner sc;
public static void main(String[] args)
{
sc = new Scanner(System.in);
int rows, i, j;
System.out.print("Enter Rows = ");
rows = sc.nextInt();
i = 0 ;
while ( i < rows )
{
j = 0;
while ( j < rows)
{
if ((i == rows - 1) && (0 < j && j < rows - 1))
{
System.out.printf("*");
}
else if ((j == rows - 1 && i != rows - 1) ||
(i > rows / 2 && j == 0 && i != rows - 1))
{
System.out.printf("*");
}
else {
System.out.printf(" ");
}
j++;
}
System.out.println();
i++;
}
}
}
Enter Rows = 17
*
*
*
*
*
*
*
*
*
* *
* *
* *
* *
* *
* *
* *
***************
在此程序中,我们创建了一个AlphabetJShape函数来打印在行和列中填充了星星的字母J图案或形状。
import java.util.Scanner;
public class Example
{
private static Scanner sc;
public static void main(String[] args)
{
sc = new Scanner(System.in);
System.out.print("Enter Rows = ");
int rows = sc.nextInt();
System.out.print("Enter Character = ");
char a = sc.next().charAt(0);
AlphabetJShape(rows, a);
}
public static void AlphabetJShape(int rows, char a)
{
for (int i = 0; i < rows; i++)
{
for (int j = 0; j < rows; j++)
{
if ((i == rows - 1) && (0 < j && j < rows - 1))
{
System.out.printf("%c", a);
}
else if ((j == rows - 1 && i != rows - 1) ||
(i > rows / 2 && j == 0 && i != rows - 1))
{
System.out.printf("%c", a);
}
else {
System.out.printf(" ");
}
}
System.out.println();
}
}
}
