// exbl6.bal   example  create and use functions and procedures  
// ballerina run exbl6.bal

import ballerina/io;

function add(int a, int b) returns (int)
{
    return a + b;
} // end function add

function prt_vec(string name, float[] a)
{
  foreach int i in 0..<a.length()
  {
    io:println(name+"[",i,"]=",a[i]);
  }
} // end procedure prt_vec

function prt_mat(string name, float[][] a)
{
  foreach int i in 0..<a.length()
  {
    foreach int j in 0..<a[0].length()
    {
      io:println(name+"[",i,"][",j,"]=",a[i][j]);
    }
  }
} // end procedure prt_mat

public function main (string... args) {
  io:println("exbl6.bal running");

  int k;
  int n = 2;
  io:println("n= ",n);
  int m = 3;
  io:println("m= ",m);
  
  k = add(n,m);
  io:println("k=add(n,m) ",k);

  float[] v1 = [1.0, 3.0, 5.0, 7.0];
  prt_vec("v1", v1);

  float[][] m1 = [[1.0, 2.0, 3.0], [4.0, 5.0, 6.0]];
  prt_mat("m1", m1);
  
  io:println("exbl6.bal ends");
} // end exbl6.bal