Find the sum of pairs from array in java

Enter the array size as input, array elements as separated by space as input. Then the third input as integer which sum up of array elements.

	import java.util.*;
	public class HackerRank {
	public static void main(String[] args) {
	Scanner in = new Scanner(System.in);
	int arraySize=0;
	arraySize=Integer.parseInt(in.nextLine().trim());
	String [] arr=new String[arraySize];
	String elements=in.nextLine();
	arr=elements.split(" "); //splitting spaces and saving it into arrays.
	int find;
	find=Integer.parseInt(in.nextLine().trim()); //number to be found in the array
	boolean isExist=false;
	for(int a=0;a<arraySize-1;a++){
	int x=Integer.parseInt(arr[a]); //converting string to integer
	int y=Integer.parseInt(arr[a+1]);
	if((x+y)==find){
	isExist=true;
	break; //if condition matches break the loop
	}
	}
	System.out.println(isExist?"true":"false");
	in.close();
	}
	}

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Input:

7
33 12 -76 11 9 7 6
20

Output:
true