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From: bilsch <bilsch01@gmail.com>
Newsgroups: comp.lang.java.programmer
Subject: It doesn't like 'super' where ever I put it.
Date: Sun, 10 Jun 2012 06:27:41 -0700
Organization: A noiseless patient Spider
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Hello,  below is my program stripped to bare bones. Java says 'super' 
must be first statement in constructor.  I've moved it everywhere still 
no luck.  The program was running yesterday and I can't figure what 
could be wrong. Any suggestions?

The error output is listed below the program

TIA  Bill S.


PROGRAM:

import javax.swing.*;
import java.awt.*;
import java.util.*;

public class CalcFrame1 extends JFrame{

     public void CalcFrame1() {
     super("CalcFrame1");
     //setTitle("CalcFrame1");
     FlowLayout flo = new FlowLayout();
     setLayout(flo);
     setLookAndFeel();
     //setSize(600,600);

    JButton shf = new JButton("shft");
    JButton chs = new JButton("chs");
    add (shf);
    add (chs);

    pack();
    setVisible(true);
     }
private void setLookAndFeel(){
         try{
         UIManager.setLookAndFeel(
                 "com.sun.java.swing.plaf.nimbus.NimbusLookAndFeel");
            }
         catch(Exception exc){
         // ignore error
             }
    }

    public static void main(String[] args){
        CalcFrame1 ClFr1 = new CalcFrame1();
    }
}

ERROR OUTPUT:
java.lang.VerifyError: Constructor must call super() or this() before 
return in method CalcFrame1.<init>()V at offset 0
	at java.lang.Class.getDeclaredMethods0(Native Method)
	at java.lang.Class.privateGetDeclaredMethods(Class.java:2442)
	at java.lang.Class.getMethod0(Class.java:2685)
	at java.lang.Class.getMethod(Class.java:1620)
	at sun.launcher.LauncherHelper.getMainMethod(LauncherHelper.java:492)
	at sun.launcher.LauncherHelper.checkAndLoadMain(LauncherHelper.java:484)
Exception in thread "main" Java Result: 1
BUILD SUCCESSFUL (total time: 2 seconds)