Bubble sort(input given by the user). I'm unable to find the error

#1

import java.util.Scanner;

public class Bubblesortinput
{
static Scanner scn=new Scanner(System.in);
public static void main(String[] args)
{
int[] array=takeinput();
bubblesort(array);
display(array);
}
public static int[] takeinput()
{
System.out.println(“Enter the array size”);
int n=scn.nextInt();
int[] arr=int[n];
for(int i=0;i<arr.length;i++)
{
System.out.println("Enetr the value for "+i+“index”);
arr[i]=scn.nextInt();
}
return arr;
}
public static void bubblesort(int[] arr)
{
for(int i=0;i<arr.length-1;i++)
{
for(int j=0;j<arr.length-1-i;j++)
{
if(a[j]>a[j+1])
{
int temp=arr[j];
arr[j]=arr[j+1];
arr[j+1]=temp;
}

        }

    }
}
public static void display(int[] arr)
{
    System.out.println("Sorted elements are ");
    for(int i=0;i<arr.length;i++)
    {
        System.out.println(arr[i]);
    }
}

}

#2

@jdkatti bro you are declaring arr not a, so correct that!
import java.util.Scanner;

public class Bubblesortinput
{
static Scanner scn=new Scanner(System.in);
public static void main(String[] args)
{
int[] array=takeinput();
bubblesort(array);
display(array);
}
public static int[] takeinput()
{
System.out.println(“Enter the array size”);
int n=scn.nextInt();
int[] arr = new int[n];
for(int i=0;i<arr.length;i++)
{
System.out.println("Enetr the value for "+i+ “index”);
arr[i]=scn.nextInt();
}
return arr;
}
public static void bubblesort(int[] arr)
{
for(int i=0;i<arr.length-1;i++)
{
for(int j=0;j<arr.length-1-i;j++)
{
if(arr[j]>arr[j+1])
{
int temp=arr[j];
arr[j]=arr[j+1];
arr[j+1]=temp;
}

    }

}

}
public static void display(int[] arr)
{
System.out.println("Sorted elements are ");
for(int i=0;i<arr.length;i++)
{
System.out.println(arr[i]);
}
}
}

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Happy coding!