Java program Sum of Array Integers

The java program find sum of  integers.  
   

Pseudocode of sum of integer 

set sum =0

Read an integer N

initialize integer array size of N

for n= 0  to N-1 

     Read an integer data

     store data into array

end for 

  

 for each E  in  array 

    sum = sum + E

end each

print sum

Java keywords and objects usage in the program

• BufferedReader class object : provides stream mechanism to read inputs from user/keyboard
• Integer class object : converts string object into java primitive datatype int
• for-loop :- repeats reading inputs from user upto N times
• for-each  : to read element from array in sequential order 

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

public class SumofArrayNumber {

public static void main(String[] args) throws IOException
        {
     
InputStreamReader dis =new InputStreamReader ( System.in );
BufferedReader br =new BufferedReader(dis);

System.out.println("Enter value for N");
       String  arg1 =br.readLine();
 
       int N = Integer.parseInt(arg1);  
       int arrinp[] =new int[N];
 
      for( int n=0;n<N;n++ )
        {    
    System.out.println("Enter " + n +"th value :" );  
    arrinp[n]= Integer.parseInt(br.readLine());
       }
 
      int sum=0;
     for(int ele  : arrinp )
     {          
   sum += ele;
     }
      
   System.out.println("Sum of Values : " + sum);
}

}


Compile and Execution steps