Calling java class in oracle procedure

Question

i have one simple java program that prints 'hi' . i want to call that java program from pl/sql procedure.how to do that.

Answer 1

This is one method I am demonstrating.
SQL> CREATE or REPLACE AND COMPILE JAVA SOURCE NAMED "HiWorld" AS
  2  public class HiWorld {
  3 
  4   public static void MyMessage(String msg) {
  5    // TODO Auto-generated method stub
  6    System.out.println(msg);
  7    }
  8 
  9  }
10  /
Java created.
SQL> CREATE or replace PROCEDURE hi_world (p_command  IN  VARCHAR2)
  2  AS LANGUAGE JAVA
  3  NAME 'HiWorld.MyMessage(java.lang.String)';
  4  /
Procedure created.
SQL> BEGIN
  2    DBMS_JAVA.SET_OUTPUT(1000000);
  3    hi_world('Saubhik');
  4  End;
  5  /
PL/SQL procedure successfully completed.
SQL> set serverout on
SQL> /
Saubhik
Saubhik
PL/SQL procedure successfully completed.Another method is loading the class file with "loadjava" command. In that case first step "CREATE or REPLACE AND COMPILE JAVA SOURCE NAMED "HiWorld" AS" is not required.