How To Solve Stack Overflow Error In Java
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them; it only takes a minute: Sign up How do I fix this stack overflow error? up vote 2 down vote favorite 1 So I have what I think is pretty good code for a sudoku solver in java but I need some help with this method. It gives me a stack overflow when I embed it in a java.lang.stackoverflowerror eclipse main method. The problem is that my method doesn't know how to turn around and fix its mistakes. I need a boolean flag (one that, unlike the one used in the code below, actually works preferably) or something to let it know when it should turn back and when it can again go forwards and continue solving the game. Thanks for any help you can give public void play(int r, int c){//this method throws the StackOverflowError if(needAtLoc(r,c).size()==9){ int num=1+generator.nextInt(9); setCell(r,c,num,this); if(c<8){ System.out.println(this);/////////////// play(r, c+1); } else{ play(r+1, 0); } } else{ if(needAtLoc(r,c).size()==0){//no possible moves THIS IS THE PROBLEM LINE!!! if(c>0){ play(r, c-1);//play last cell, in column to left } else{ if(r==0){ play(r,c);//first square, so must play again (can't go back) } else{ play(r-1, 8);/*first cell of row so must go to previous row and the end column*/ } } } else{//if there are possible moves int num=needAtLoc(r,c).remove(generator.nextInt(needAtLoc(r,c).size())); setCell(r,c,num,this);//set the value of the cell System.out.println(this);////////////// if(r==8 && c==8){//the end of the cell has been reached so must end recursive call return; } else{ if(c<8){ play(r, c
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How To Resolve Java Lang Stackoverflowerror
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with a mandatory word, e.g. keyword2 keyword1 +keyword2 Questions excluding a word, e.g. keyword2 keyword1 -keyword2 Questions with a https://developer.ibm.com/answers/questions/243505/getting-javalangstackoverflowerror-how-to-resolve.html specific tag and keyword(s) +[tag1] keyword1 Questions with two or https://coderanch.com/t/551455/java/java/Exception-java-lang-StackOverflowError more specific tags and keyword(s) +[tag1] +[tag2] keyword1 To search for all posts by a user or all posts with a specific tag, start typing and choose from the suggestion list. Tags Spaces API Connect Appsecdev BPM Blockchain Bluemix CICS Cloud Analytics how to Cloud marketplace Content Services (ECM) Continuous Testing Courses DB2 LUW DataPower Decision Optimization DevOps Services Digital Experience Hadoop IBM Design IIDR ITOA InformationServer Integration Bus Internet of Things LinuxONE MDM Mainframe Messaging Node.js ODM Open Predictive Analytics PureData for Analytics Push Run Book Automation Storage Streamsdev Swift UrbanCode WASdev WSRR Watson dW stack overflow error Answers Help dW Premium developerWorks Team Watson Health More Users Badges Ask a question Getting java.lang.StackOverflowError, how to resolve it? Question by RobertW ( 963) | Dec 11, 2015 at 12:43 PM javajndinamespace Getting the following StackOverflowError when executing a dump namespace: TRACE START: java.lang.StackOverflowError at java.util.regex.Pattern$Branch.match(Pattern.java:4513) at java.util.regex.Pattern$GroupTail.match(Pattern.java:4626) at java.util.regex.Pattern$Curly.match1(Pattern.java:4196) at java.util.regex.Pattern$Curly.match(Pattern.java:4145) at java.util.regex.Pattern$GroupHead.match(Pattern.java:4567) at java.util.regex.Pattern$Branch.match(Pattern.java:4511) at java.util.regex.Matcher.match(Matcher.java:1232) at java.util.regex.Matcher.matches(Matcher.java:570) at com.ibm.rmi.corba.IIOPAddrImpl.(IIOPAddrImpl.java:107) at com.ibm.rmi.corba.Corbaloc.parseObjAddr(Corbaloc.java:231) at com.ibm.rmi.corba.Corbaloc.parseObjAddrList(Corbaloc.java:181) at com.ibm.rmi.corba.Corbaloc.parseCorbaloc(Corbaloc.java:145) at com.ibm.rmi.corba.Corbaloc.(Corbaloc.java:120) at com.ibm.rmi.corba.ORB.createObjectURL(ORB.java:3731) at com.ibm.rmi.corba.ORB.createObjectURL(ORB.java:3698) at com.ibm.rmi.corba.ORB.string_to_object(ORB.java:3694) People who like this Close 0 Comment 10 |3000 characters needed characters left characters exceeded Viewable by all users Viewable by moderators Viewable by moderators and the original poster Viewable by all users 1 reply · Add your answer Sort: Accepted answer Answer by RobertW (963) | Dec 11, 2015 at 12:46 PM There are many possible causes to a StackOverflowError, as described in this technote: "Diagnosing a java.lang.StackOverflowError" http://www.ibm.com/support/docview.wss?uid=swg21162896 on the other hand, per curren
This Site Careers Other all forums Forum: Beginning Java Exception -- java.lang.StackOverflowError Mustafa Dasorwala Greenhorn Posts: 29 posted 5 years ago Hi, This is my first post to any forum, hope I've posted it in the right place ............... The following is a program to solve a sudoku, the program has some bugs that I am not able to figure out. I've also give the (error) at the end................. (It definitely is the most inefficient implementation of Sudoku solver) //__________________________________________________________________________ /* * To change this template, choose Tools | Templates * and open the template in the editor. */ package sudokumain; /** * * @author Mustafa */ public class SudokuMain { /** * @param args the command line arguments */ public static void main(String[] args){ // TODO code application logic here try { Sudoku s = new Sudoku(); s.go(); }catch(Exception e) { System.out.println("WWWWWWWW"); } } } //___________________________________________________________________________ package sudokumain; public class Cell { int value = 0; Boolean canChange = true; //make it false in case of predefined nos on the board } //_______________________________________________________________________________ /* * To change this template, choose Tools | Templates * and open the template in the editor. */ package sudokumain; /** * * @author Mustafa */ public class Sudoku { Cell[][] board = new Cell[9][9]; int firstChangableCell = 0; int x, y; Boolean goback = false; public void go() { // create board start String input = "360000000004230800000004200070460003820000014500013020001900000007048300000000045"; int k = 0; for (int i = 0; i < 9; i++) { for (int j = 0; j < 9; j++) { Cell c = new Cell(); //System.out.println(Integer.parseInt(((Character) input.charAt(k)).toString())); c.value = Integer.parseInt(((Character) input.charAt(k)).toString()); if (c.value != 0) { c.canChange = false; } k++; board[i][j] = c; } } display(); SudokuSolver(0, 0); //display(); //create board ends } public void display() { for (int i = 0; i < 9; i++) { for (int j = 0; j < 9; j++) { System.out.print(board[i][j].value + " "); } System.out.println(""); } } void SudokuSolver(int i, int j) { try { if(i == 7 && j == 7) { System.out.println("XXXXXXXXX"); } if (board[i][j].canChange == false) { if (firstChangableCell == 0) { x = i; y = j; } } else { firstChangableCell = 1; Boolean checkReturn = false; int val = board[i][j].value; val++; for (int k = val; k <= 9; k++) { if (k == 10) { break; } checkReturn = check(i, j, k); if (checkReturn == true) { val = k; break; } } if (checkRet