How to print this pattern

Question

1234554321
1234 4321
123 321
12 21
1 1

Answer 1

public class Main
{
public static void main(String args[])
{
int a[]=new int[5];
a[0]=1;
a[1]=2;
a[2]=3;
a[3]=4;
a[4]=5;
int len=a.length;
int blank_space=0;
while(len>=0)
{
for(int i=0;i<len;i++)
{
System.out.print(a[i]);
}
for(int j=1;j<=blank_space;j++)
{
System.out.print(" ");
}
for(int k=len-1;k>=0;k--)
{
System.out.print(a[k]);
}
System.out.println("");
--len;
blank_space+=2;
}
}
}

Answer 2

tnkew

Answer 3

i'll show you coding wait

Answer 4

wait i'm typing the code

Answer 5

import java.io.*;
import java.lang.*;
class rbs
{
public static void main(String args[])throws IOException
{
InputStreamReader ob=new InputStreamReader(System.in);
BufferedReader ob1=new BufferedReader(ob);
int i,j,k,m;
int m=10;
for(i=5;i>=1;i--)
{
for(k=1;k<=m;k++)
{
System.out.print("");
}
for(j=1;j<=i;j++)
{
System.out.print(j+" ");
}
m--;
System.out.println("");
}
m=m+1;
for(i=1;i<=5;i++)
{
for(j=1;j<=m;j++)
{
System.out.println(" ");
}
for(k=1;k<=i;k++)
{
System.out.println(k+"");
}
m++;
System.out.println(" ");
}
}
}

Answer 6

using nested for loop only

Answer 7

ok