Print Integer if Below is Odd

JAVA Code :-

import java.util.*;
public class Hello {

    public static void main(String[] args) {
        //Your Code Here
Scanner s=new Scanner(System.in);
int n,m;
n=s.nextInt();
m=s.nextInt();
int a[][]=new int[n][m];
int b[][]=new int[n][m];
for(int i=0;i<n;i++)
for(int j=0;j<m;j++)
a[i][j]=s.nextInt();
for(int j=0;j<m;j++)
{
    for(int i=0;i<n-1;i++)
    {
        if(a[i+1][j]%2!=0)
        {
            b[i][j]=a[i][j];
        }
    }
}
for(int i=0;i<n;i++)
{
    for(int j=0;j<m;j++)
    {
        if(b[i][j]==0)
        System.out.print('*'+" ");
        else
        System.out.print(b[i][j]+" ");
    }
    System.out.println();
}
    }
}

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