error description:
compiletime error in line 69
code:

import java.util.Scanner;
public class sorte
{ void sort(int n,int[] a)
{ int temp;
for(int I=0;i<n;i++)
{ for(int j=0;j<n-i-1;j++)
{ if(a[j]>a[j+1])
{ temp=a[j+1];
a[j+1]=a[j];
a[j]=temp;
}
}
}
}
void display(int x,int[] y)
{
for(int I=0;i<x;i++)
{
System.out.println(+y[i]);
}
}








public class sort of
{ public static void main(String args[])
{
Scanner in=new Scanner(System.in);
int[] a=new int[30];
int[] b=new int[30];
int[] d=new int[60];

System.out.println("enter array size");
int n=in.nextInt();
System.out.println("enter the 1st array elements");
for(int I=0;i<n;i++)
{
a[i]=in.nextInt();
}
sort(n,a);
System.out.println("the sorted array is");
display(n,a);
System.out.println("enter array size");
int c=in.nextInt();
System.out.println("enter the 1st array elements");
for(int I=0;i<c;i++)
{
b[i]=in.nextInt();
}
sort(c,b);
System.out.println("the sorted array is");
display(c,b);
System.out.println("the merged array is:");
int g;
g=n+c;


for(int I=0;i<n;i++)
{
d[i]=a[i];
}
for(int j=0;j<g-n-1;j++)
{
d[j]=b[j];
}
System.out.println("the sorted merged array is");
sort(g,d);
display(g,d);
}}

Hard to say without knowing what is on line 69. (I don't have the will to try to count and know it is a fruitless endeavour regardless).

The println in the display method looks a little funky though. I am more of a C++ guy then Java though.