用 Java 打印金字塔图案的程序
原文:https://www . geesforgeks . org/programs-printing-金字塔-patterns-java/
本文旨在给出一个模式打印的 Java 实现。
- Simple pyramid pattern
Java
import java.io.*;
// Java code to demonstrate star patterns
public class GeeksForGeeks
{
// Function to demonstrate printing pattern
public static void printStars(int n)
{
int i, j;
// outer loop to handle number of rows
// n in this case
for(i=0; i<n; i++)
{
// inner loop to handle number of columns
// values changing acc. to outer loop
for(j=0; j<=i; j++)
{
// printing stars
System.out.print("* ");
}
// ending line after each row
System.out.println();
}
}
// Driver Function
public static void main(String args[])
{
int n = 5;
printStars(n);
}
}
输出
*
* *
* * *
* * * *
* * * * *
- After 180-degree rotation
Java
import java.io.*;
// Java code to demonstrate star pattern
public class GeeksForGeeks
{
// Function to demonstrate printing pattern
public static void printStars(int n)
{
int i, j;
// outer loop to handle number of rows
// n in this case
for(i=0; i<n; i++)
{
// inner loop to handle number spaces
// values changing acc. to requirement
for(j=2*(n-i); j>=0; j--)
{
// printing spaces
System.out.print(" ");
}
// inner loop to handle number of columns
// values changing acc. to outer loop
for(j=0; j<=i; j++)
{
// printing stars
System.out.print("* ");
}
// ending line after each row
System.out.println();
}
}
// Driver Function
public static void main(String args[])
{
int n = 5;
printStars(n);
}
}
输出
*
* *
* * *
* * * *
* * * * *
-
```java *
```
-
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