/* 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 Ideone
{
	public static void main (String[] args) throws java.lang.Exception
	{
		int a = 4;
		int b = 6;
		int[] arr = {5,7,0,6,1,2,8,4};
		int abcount = 0;
        for (int i = 0; i < arr.length; i++) {
          if (arr[i]>=a && arr[i]<=b) //этот элемент не нужен, с ним ничего делать не нужно
            abcount++; 
          else
           arr[i-abcount] = arr[i];  //а нужный ставим на финальную позицию
        }
 
        for (int i = arr.length - abcount; i < arr.length; i++)
           arr[i] = 0;
 
         System.out.println("" + Arrays.toString(arr));   
	}
}

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