java - How to debug try and catch blocks? -

i wondering if there can me out these 2 debugging assignments in java, involving try/catch/throw statements. can't seem figure out how debug either assignment working in netbeans zip file attached.

all or appreciated. thanks.

assignment 1:

package debugmeone;  import java.io.file; import java.io.filenotfoundexception; import java.util.scanner; /*  * file requires debugging.  partial file read text file  * simple error checking.  if file not found (you testing this)  * filenotfoundexception should thrown.  second catch statement  * producing error (red stop sign).  why?  job have both  * exception , filenotfoundexception in file.  not remove either 1  * of them.  don't create file accountrecords.txt; testing  * file not found condition there no need create file.  *  * output should be:  *  *   run:  *   error - file not found: accountrecords.txt  *   java result: 100  *   build successful (total time: 0 seconds)  */  public class readtextfile {      private scanner input;  // ignore hint given netbeans      public void openfile() {         try         {             input = new scanner( new file("accountrecords.txt"));         }         catch(exception e)         {             system.out.println("something bad happened here.");             system.exit(707);         }         // debug line; should solve error message?         //   read error message provided ide         catch( filenotfoundexception  fnfe)         {             system.out.println("error - file not found: accountrecords.txt");             system.exit(100);         }     } } 

assignment 2:

package debugmetwo;  /* * need debug file. * * output should be: * *  run: *  there problem eagle! *  java result: 9999 *  build successful (total time: 0 seconds) */ public class throweagleexceptiontest {      public static void main(string[] args) {         try {          eaglelanding();         } catch (eaglelandingexception badeagle) {             system.out.printf("%s\n", badeagle.getmessage());             system.exit(9999);         }     }      private static void eaglelanding {          eaglelandingexception("there problem eagle!");     } } 

you have compile time error message, not runtime 1 debugger for. message read is

    // debug line; should solve error message?     //   read error message provided ide     catch( filenotfoundexception  fnfe) 

you expected read error message provided in ide , fix it. hint: specific exception have come first.

you second example won't compile either. need make compile throwing exception. if don't know how that, @ example.