Programming Forums - Snytax error

i asked to help from one of my classmate and here is the code

this for the clas which has the operations

 public class Convert{     // Convert class starts

    

    public Integer minute(Integer hr){ // define a varible and pass parameter

        Integer min = hr * 60; // declare minutes with shortcut and the 

        // operation of converting hour to minutes

        return min; // return type of minute 

    }// end of minute

    

    

     public double hour(double min){ // define a varible and  pass parameter min

       double hr = min / 60; // declare minutes with shortcut  and the operation 

       //of converting minutes to hours

        return hr;// return type of hour

    }// end of hour

     

     

          public double hr(double day){// define a varible hour with shortcut 

         // because there is another varible called hour so it should be changed 

         //and pass parameter

        double hr = day * 24  ;//declare hour with shortcut and the operation

        //of converting day to hours

        return hr;// return type of hour

     }// end of hour

          

     

     public double day(double hour){// define a varible and pass parameter

        double day = hour / 24  ;//declare day and the operation 

        //of converting hours to day

        return day;// return type of day

     }// end of day

     

       

         

     public Integer week(Integer yr){// define a varibel week and pass 

        //parameter

       Integer wek = yr*52  ;// decalre week with shortcut and the operation of 

        //converting weeks to years

        return wek;// return type of week

     }//end of week

             

             

      public Integer Day(Integer week ){//define a varible day and pass 

        //parameter

      Integer  Dy = week *7 ;// declare day with shortcut and the operation of 

      //converting week to days

        return Dy; //return type of day

      }// end of day

      

      

      public double week ( double day){

      double week = day / 7;

      return day;

      }

      

              

      

        public double year(double week){// define a varible year and pass 

        //parameter

        double yer = week/52  ;// declare year with shortcut and the operation 

        //of converting year to week 

        return yer;//return type of year

     }// end of year1

        

             

        

        public double yer(double month ){// define a varible year with a  and 

            //pass parameter. because year is declared before year so the name 

            //should be different

        double   yar = month/12;// declate year with shortcut and the operation 

        //of converting months to year

        return yar;// retrun type of year

     }// end of year2

        

        

}// end of the class

and this for main method

 //import java.lang.String and int; 

// import the package to avoid any snytax error

import javax.swing.*;

// import this package for graphical user interface



public class ConvertTest{// the class starts

    

    public static void main(String args[]){// the main mothed starts for executing the programme

        

        Convert test = new Convert ();// creating an object to call for convert class

        

        while(true){// while true starts for looping

        String menu="Enter your Option:\n " ;

        // the menu starts and converting ways of minute, hour, day, year, month, week and year

        String Option1= "1- Convert from Minute to Hour                  2- Convert from Hour to Minute \n";

        String Option2= " 3- Convert from Day to Hour                        4- Convert from Hour to Day \n";

        String Option3= " 5- Convert from Days to Week                    6- Convert from Week to Days \n";

        String Option4= " 7- Convert from Year to Weeks                   8- Convert from Weeks to Year \n";

        String Option5= " 9- Convert from Months to Year                  0- Exit";

        String choose= JOptionPane.showInputDialog(menu + Option1 + Option2+ Option3+ Option4+Option5);

        // to dispaly the menu in input dialog so the user can enter any number from above

        int num = Integer.parseInt(choose);} // to convert string to number

        

while(true){ // while starts

           String Option1 = JOptionPane.showInputDialog("Enter Number to Convert from Minute to Hour"); // dialog box to enter a number

try{// try statement starts

        int y = Integer.parseInt(Option1);//converting from string to number

        

        if (y == 1){// if statement starts and checking of the method

Integer minutes=test.minute(y);//calling the formula  from convert class

JOptionPane.showMessageDialog(null,"Minutes ="+minutes+ " Hours");// display the answer in dialog box

        }//if ends



else{// else starts

break;// the programme stops

}}// end of else  and try

catch (Exception e){// catch starts 

        JOptionPane.showMessageDialog(null,"Enter a number");// display an error

}}//end of catch and while







while(true){//while starts

           String Option2 = JOptionPane.showInputDialog("Enter Number toConvert from Hour to Minute"); // dialog box to enter a number

            try{// try statement starts

                int x = Integer.parseInt(Option2);//converting from string to number

        if (x == 2){// if statement starts and checking of the method

 double Hour=test.hour(x);//calling the formula  from convert class

JOptionPane.showMessageDialog(null,"Hours = "+Hour+ " Minutes");// display the answer in dialog box

        }//if ends



else{ // else starts



break;// the programme stops

}} // end of else  and try

catch (Exception e){// catch starts

        JOptionPane.showMessageDialog(null,"Enter a number with this forumal 0.0");// display an error

}}//end of catch and while





while(true){// while starts

          String  Option3 = JOptionPane.showInputDialog("Enter Number to Convert from Day to Hour"); // dialog box to enter a number

try{// try statement starts

int d = Integer.parseInt(Option3);//converting from string to number

        if (d == 3){// if statement starts and checking of the method

        double Day=test.hr(d);//calling the formula  from convert class

        JOptionPane.showMessageDialog(null,"Day = "+Day+ " Hours");// display the answer in dialog box

        }//if ends



else{// else starts

break;// the programme stops

}}// end of else  and try

catch (Exception e){// catch starts

        JOptionPane.showMessageDialog(null,"Enter a number");// display an error

}}//end of catch and while





while(true){// while starts

            String Option4 = JOptionPane.showInputDialog("Enter Number to Convert from Hour to Day");// dialog box to enter a number

            try{// try statement starts

            int h = Integer.parseInt(Option4);//converting from string to number

        if (h == 4){// if statement starts and checking of the method

        double Hour=test.day(h);//calling the formula  from convert class

        JOptionPane.showMessageDialog(null,"Hours =  "+ Hour + " Day"); // display the answer in dialog box

        }//if ends



else{// else starts

break;// the programme stops

}}// end of else  and try

catch (Exception e){// catch starts

        JOptionPane.showMessageDialog(null,"Enter a number");// display an error

}}//end of catch and while





while(true){// while starts

            String Option5 = JOptionPane.showInputDialog("Enter Number to Convert from Days to Week");// dialog box to enter a number

try{// try statement starts

int x = Integer.parseInt(Option5);//converting from string to number

        if (x == 5){// if statement starts and checking of the method

        double week=test.Day(x); //calling the formula  from convert class

        JOptionPane.showMessageDialog(null,"Days = "+week+ "Week");// display the answer in dialog box

        }//if ends



else{// else starts

break;// the programme stops

}}// end of else  and try

catch (Exception e){// catch starts

        JOptionPane.showMessageDialog(null,"Enter a number");// display an error

}}//end of catch and while





while(true){// while starts

           String Option6 = JOptionPane.showInputDialog("Enter Number to Convert from Week to Days");// dialog box to enter a number

try{// try statement starts

 int x = Integer.parseInt(Option6);//converting from string to number

        if (x == 6){// if statement starts and checking of the method

        double week=test.week(x); //calling the formula  from convert class

        JOptionPane.showMessageDialog(null,"Weeks "+  week+ " Days");// display the answer in dialog box

        }//if ends

else{// else starts

break;// the programme stops

}}// end of else  and try

catch (Exception e){// catch starts

        JOptionPane.showMessageDialog(null,"Enter a number");// display an error

}}//end of catch and while





while(true){// while starts

            String Option7 = JOptionPane.showInputDialog("Enter Number to Convert from Year to Weeks");// dialog box to enter a number

try{// try statement starts

int x = Integer.parseInt(Option7);//converting from string to number

        if (x == 7){// if statement starts and checking of the method

                

       double  year=test.week(x);//calling the formula  from convert class

        JOptionPane.showMessageDialog(null,"Weeks"+ " " +"years");// display the answer in dialog box

        } //if ends

else{// else starts

break;// the programme stops

}}// end of else  and try

catch (Exception e){// catch starts

        JOptionPane.showMessageDialog(null,"Enter a number");// display an error

}}//end of catch and while





while(true){// while starts

            String Option8 = JOptionPane.showInputDialog("Enter Number to Convert from Weeks to Year");// dialog box to enter a number

try{// try statement starts

int x = Integer.parseInt(Option8);//converting from string to number

        if (x == 8){// if statement starts and checking of the method           

       double Hour=test.year(x);//calling the formula  from convert class

        JOptionPane.showMessageDialog(null,"Years"+ " "+" Weeks");// display the answer in dialog box

        } //if ends

else{// else starts

break;// the programme stops

}}// end of else  and try

catch (Exception e){// catch starts

        JOptionPane.showMessageDialog(null,"Enter a number");// display an error

}}//end of catch and while



while(true){// the while loop starts

            String Option9 = JOptionPane.showInputDialog("Enter Number to Convert from Months to Year");// input number to get the answer

try{// the validation of try starts

int x = Integer.parseInt(Option9);//convert string into a number

        if (x == 9){// if statement starts to check the value

        double month=test.yer(x);// calling the formula from the class

        JOptionPane.showMessageDialog(null,"Months"+" " +"Year");

        }

else{// doing another thing

break;// the programme stops

}// end else

}//end try

catch (Exception e){// the exception starts

        JOptionPane.showMessageDialog(null,"Enter a Number with this format 0.0");// display a message when the format is wrong

}//end exception

}//end of the while loop

  

        String Option0=JOptionPane.showInputDialog("Enter Number to Exit from The Programme");

        int z=Integer.parseInt(Option0);

            if (z == 0){// 0 is the number of exiting for the programme

                   break; 

            }// to stop the programme from running

        

    }// end main method

 } //end class

the last error disspeared but i have error in last brea which is this :

  String Option0=JOptionPane.showInputDialog("Enter Number to Exit from The Programme");

        int z=Integer.parseInt(Option0);

            if (z == 0){// 0 is the number of exiting for the programme

                   break; 

            }// to stop the programme from running

the error says"breaks outside switch or loop"

do you have any idea about this error and how could it be solved??