patterns, Java - rextester

patterns

/* package whatever; // don't place package name! */

import java.util.*;
import java.lang.*;
import java.io.*;

/* Name of the class has to be "Main" only if the class is public. */
class Rextester
{
	public static void main (String[] args) throws java.lang.Exception
	{
		int i=0, j=0;
		
		for(i=1;i<=5;i++){
			for(j=0;j<i;j++){
				System.out.print("* ");
			}
			System.out.println();
		}
		System.out.println();
		
		for (i=1;i<=5;i++){
			for(j=0;j<5-i;j++){
				System.out.print("  ");
			}
			for(j=0;j<i;j++){
				System.out.print("* ");
			}
			System.out.println();
		}
		System.out.println();
		
		for(i=5;i>=1;i--){
			for(j=0;j<i;j++){
				System.out.print("* ");
			}
			System.out.println();
		}
		System.out.println();
		
		for (i=5;i>=1;i--){
			for(j=0;j<5-i;j++){
				System.out.print("  ");
			}
			for(j=0;j<i;j++){
				System.out.print("* ");
			}
			System.out.println();
		}
		System.out.println();
		
		for(i=1;i<=5;i++){
            for(j=0;j<5-i;j++){
				System.out.print("  ");
			}
			for(j=0;j<i+i-1;j++){
				System.out.print("* ");
			}
			System.out.println();
        }
        System.out.println();
        
		for(i=1;i<=5;i++){
            for(j=0;j<5-i;j++){
				System.out.print("  ");
			}
			for(j=0;j<i+i-1;j++){
				System.out.print("* ");
			}
			System.out.println();
        }
        for(i=4;i>0;i--){
        	for(j=0;j<5-i;j++){
				System.out.print("  ");
			}
			for(j=0;j<i+i-1;j++){
				System.out.print("* ");
			}
			System.out.println();
        }
            }
}


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