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# Thread: MERGE SORT pls help

1. ## MERGE SORT pls help

this is correct already i just nid to display the part by part of merge sort steps

```
public class mergesortinteger {

public static int a[]=new int[50];

public static void merge_sort(int low,int high)
{
int mid;
if(low<high)
{
mid=(low+high)/2;
merge_sort(low,mid);
merge_sort(mid+1,high);
merge(low,mid,high);
}
}
public static void merge(int low,int mid,int high)
{

int h,i,j,k;
int b[]=new int[50];
h=low;
i=low;
j=mid+1;
while((h<=mid)&&(j<=high))
{
if(a[h]<=a[j])
{
b[i]=a[h];
h++;
}
else
{
b[i]=a[j];
j++;
}
i++;
}
if(h>mid)
{
for(k=j;k<=high;k++)
{
b[i]=a[k];
i++;
}
}
else
{
for(k=h;k<=mid;k++)
{
b[i]=a[k];
i++;
}
}
for(k=low;k<=high;k++) a[k]=b[k];
}

public static void merge_integer(){

int num,i;

System.out.println("N series");
num=new Scanner(System.in).nextInt();
System.out.println();
System.out.println("Now, Please Enter ("+ num +") nos.:");
for(i=1;i<=num;i++)
{
a[i]=new Scanner(System.in).nextInt() ;
}

merge_sort(1,num);
System.out.println();
System.out.println("Merge Sorted[Integer]:");
for(i=1;i<=num;i++)
System.out.println(a[i]+"    ");

}

}```

2. ## Re: MERGE SORT pls help

[code=java]
[/code]
to get highlighting and preserve formatting.

3. ## Re: MERGE SORT pls help

edited .... how will i display the sorting .....

4. ## Re: MERGE SORT pls help

how will i display the sorting
Can you post an example of the output you want from the program?

5. ## Re: MERGE SORT pls help

example :
```N series: 8
Input Value:
5
7
4
3
2
8
6
1

DISPLAY :
5 7 4 3 2 8 6 1
5 7 4 3   2 8 6 1
5 7   4 3   2 8   6 1
5  7  4  3    2  8  6  1
5 7   3 4      2 8   1 6
3 4 5 7        1 2 6 8
1 2 3 4 5 6 7 8 <-----FINAL answer```

--- Update ---

the spaces in the display doesnt matter

6. ## Re: MERGE SORT pls help

Is the print out the contents of the arrays?
To print the contents of an array on a line, use a loop and the print() statement.
Call the println() method or add a "\n" at the end of a line when you want the next output to go on the next line.

7. ## Re: MERGE SORT pls help

my program only display the sorted array ...not displaying the step by step sorting of a merge sort

8. ## Re: MERGE SORT pls help

You need to add code as discussed in post #6