How to compile and execute a generated file

Question

Hi,
Can somebody help me please? My program goes like this:
I'm creating a program wherein there are two TextArea, left and right, and a button. The role of the left TextArea is where I will type a Java code (what i mean is a class). After typing, the next thing is to press the button. The role of the button, in a user side view, is to show the output of the written java code from the left TextArea to the right TextArea. To have an idea of the program I am creating please refer at this link, http://w3schools.com/html/tryit.asp?filename=tryhtml_tables. This is similar to what im doing.
My idea is to transfer all what are written in the left TextArea in a file using FileOutputStream and name the file by default as "Testing.java". Definitely the user shall be forced to write a class named Testing.java in the left TextArea. My question is, how am I gonna compile the generated Testing.java, run it at once and post the output at the left TextArea?
I hope somebody could help me regarding this matter. Below is my code I've done:
import java.io.*;
import java.awt.*;
import java.awt.event.*;
public class Test extends Frame implements ActionListener
private TextArea ta_code; //where the java code is written
private TextArea ta_output; //where the output of the java code will be printed
private Button btn_ExecComp; //compiles the program written in the ta_code. Execute's the generated class and print the result in the ta_output
private Panel btn_panel;
private Panel ta_output_panel;
private Panel ta_code_panel;
private Panel ta_panel;
private Panel main_panel;
private String str_code;
private String str_output;
public Test()
initialize();
setupObj();
public void initialize()
String text = "public class Testing \n";
text = text + "{\n";
text = text + " \n";
text = text + "public static void main(String args[]) \n";
text = text + "{ \n";
text = text + " //insert your code here \n";
text = text + "} \n";
text = text + "\n";
text = text + "} \n";
ta_code = new TextArea(text);
ta_output = new TextArea();
btn_ExecComp = new Button("Execute Code");
btn_panel = new Panel();
ta_code_panel = new Panel();
ta_output_panel = new Panel();
ta_panel = new Panel();
main_panel = new Panel();
public void setupObj()
btn_ExecComp.addActionListener(this);
btn_panel.setLayout(new FlowLayout());
ta_code_panel.setLayout(new FlowLayout());
ta_output_panel.setLayout(new FlowLayout());
ta_panel.setLayout(new FlowLayout());
main_panel.setLayout(new FlowLayout());
btn_panel.add(btn_ExecComp);
ta_output_panel.add(ta_output);
ta_code_panel.add(ta_code);
ta_panel.add(ta_code_panel);
ta_panel.add(ta_output_panel);
main_panel.add(btn_panel);
main_panel.add(ta_panel);
this.add(main_panel);
this.pack();
this.setVisible(true);
public void actionPerformed(ActionEvent ae)
if(ae.getSource() == btn_ExecComp)
str_code = ta_code.getText();
try
byte[] byte_code = str_code.getBytes();
FileOutputStream fos = new FileOutputStream("Testing.java");
fos.write(byte_code);
System.out.println("Testing.java successfully written");
* How am i be able to compile, run the generated class file and post the output at the right TextArea namely ta_output?
System.out.println("compiling...");
System.out.println("compiling successful");
System.out.println("executing...");
catch(Exception e)
e.printStackTrace();
public static void main(String a[])
Test t = new Test();
}

Answer 1

Hi All,
After reading Pro*C Question thread I have tried below steps to compile my .C program, but failed with the given errors
$->cc -I$ORACLE_HOME/precomp/public -L$ORACLE_HOME/lib first.c -o sample
ld: 0711-317 ERROR: Undefined symbol: .sqlcxt
ld: 0711-345 Use the -bloadmap or -bnoquiet option to obtain more information.
collect2: ld returned 8 exit statusAfter receiving above error I tried below command as an alternative
$->cc -I$ORACLE_HOME/precomp/public -L$ORACLE_HOME/lib first.c -o first -lclntsh -lsql10
collect2: library libsql10 not foundCould you please help in resolving above error? Whats missing exactly?