Java 中的圣诞树图案

17 Mar 2025 | 阅读 2 分钟

在本节中，我们将创建三种不同设计的Java 圣诞树图案程序。圣诞树图案也称为Xmas 图案。

ChristmasTreePattern1.java

import java.util.Scanner;
public class ChristmasTreePattern1
{
public static void main(String args[]) 
{
Scanner sc = new Scanner(System.in);
System.out.print("Enter the height of tree: ");
int h = sc.nextInt();
//beginning of upper part
for(int i = 1;i <= h;i++)
{
for(int j = h-i;j > 0;j--)
{
System.out.print(" ");
}
for(int k = 1;k <= i;k++)
{
System.out.print("* ");
}
System.out.println();
}
//end of upper part
//beginning of lower part
for(int i = 1;i <= h-1;i++)
{
System.out.print(" ");
for(int j = h-3;j > 0;j--)
{
System.out.print(" ");
}
for(int k = 2;k > 0;k--)
{
System.out.print("| ");
}
System.out.println();
}// end of lower part
}
}

输出

让我们为另一个圣诞树图案编写 Java 程序。

ChristmasTreePattern2.java

import java.util.Scanner;
public ChristmasTreePattern
{
public static void main(String args[])
{
Scanner sc = new Scanner(System.in);
System.out.print("Enter the height of the Tree: ");
//reads height of the tree
int h = sc.nextInt();
System.out.print("Enter the width of the Tree: ");
//reads width of the tree
int w = sc.nextInt();
//calculates spaces
int space = w*5;
int x = 1;
for(int a = 1; a <= h; a++)
{
for(int i = x; i <= w; i++)
{
//loop for space
for(int j = space; j >= i; j--)
{
System.out.print(" ");
}
for(int k = 1;k <= i;k++)
{
System.out.print("* ");
}
System.out.println();
}
x = x+2;
w = w+2;
}
for(int i = 1; i <= 4; i++)
{
for(int j = space-3; j >= 1; j--)
{
//prints spaces
System.out.print(" ");
}
//loop to print t star
for(int k= 1; k <= 4; k++)
{
System.out.print("* ");
}
//throws cursor to the next line
System.out.println();
}
}
}

输出

让我们为另一个圣诞树图案编写 Java 程序。

ChtrismasTreePattern3.java

public class ChtrismasTreePattern3
{
public static void main(String args[]) 
{
for(int i=1; i<=4; i++)
{
for(int k=1; k<=5-i+1; k++)
{
System.out.print(" ");
}
for(int j=1; j<=2*i-1; j++)
{
System.out.print("*");
}
System.out.println();
}
// Second
for(int i=1; i<=4; i++)
{
for(int k=1; k<=4-i+1; k++)
{
System.out.print(" ");
}
for(int j=1; j<=2*i+1; j++)
{
System.out.print("*");
}
System.out.println();
}
// third
for(int i=1; i<=4; i++)
{
for(int k=1; k<=3-i+1; k++)
{
System.out.print(" ");
}
for(int j=1; j<=2*i+3; j++)
{
System.out.print("*");
}
System.out.println();
}
// Forth
for(int i=1; i<=2; i++)
{
for(int k=1; k<=5; k++)
{
System.out.print(" ");
}
for(int j=1; j<=1; j++)
{
System.out.print("*");
}
System.out.println();
}
System.out.print("  *******");
}
}

输出