How To Resolve Stack Overflow Error In Java
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Java.lang.stackoverflowerror Eclipse
hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges exception in thread main java.lang.stackoverflowerror recursion Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each java.lang.stackoverflowerror: null other. Join 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 https://examples.javacodegeeks.com/java-basics/exceptions/java-lang-stackoverflowerror-how-to-solve-stackoverflowerror/ in java but I need some help with this method. It gives me a stack overflow when I embed it in a 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 http://stackoverflow.com/questions/1919787/how-do-i-fix-this-stack-overflow-error 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+1);//normal, next cell } else{ play(r+1, 0);/*last cell in row so we go to next one in the first column ("return" button)*/ } } } } } java recursion stack-overflow sudoku share|improve this question edited Jan 7 '10 at 5:23 community wiki 8 revs, 7 users 37%user233542 1 you should tell people it's Java. That's a lot of code, by the way, think about breaking it down to functions. Are you sure solving a sudoku fits on the stack? –Kobi Dec 17 '09 at 6:14 Sudoku code with a deadline. Homework? –Fredrik Mörk Dec 17 '09 at 6:15 1 Unless T-9hrs is the name of a Terminator model ;)
here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow the company Business Learn more about hiring developers or posting http://stackoverflow.com/questions/4511354/how-to-solve-stackoverflow-exception-in-this-java-method ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join http://stackoverflow.com/questions/2127217/java-stack-overflow-error-how-to-increase-the-stack-size-in-eclipse the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up how to solve stackoverflow exception in this java method? [duplicate] up vote 0 down vote favorite Possible Duplicate: Stack overflows from deep recursion in Java? I have written the following method with divide and conquer for my assignment: how to calculateC(cMatrix, cMatrix.length - 1, cMatrix.length - 1, w); for(int i = cMatrix.length - 2 ;i>=0; i--) calculateC(cMatrix, i, i+1, w); private static double calculateC(double[][] matrix, int i, int j, double[][] w){ o++; double x1 = 0; double x2 = 0; double result = 0; if(i > j) result = 0; if(i == j){ matrix[i][j] = w[i][j]; result = w[i][j]; } else if(i <= j){ for(int k = i; k <= j; k++){ if(i > k - 1) x1 = 0; else if(i how to resolve <= k - 1){ if(matrix[i][k - 1] != 0){ x1 = matrix[i][k - 1]; } else{ x1 = calculateC(matrix, i, k - 1, w); } } if(k + 1 > j) x2 = 0; else if(k + 1 <= j){ if(matrix[k + 1][j] != 0){ x2 = matrix[k + 1][j]; } else{ x2 = calculateC(matrix, k + 1, j, w); } } cs.add(x1 + x2); ks.add(k); } addMin(matrix, i, j, cs, ks, w); } if(j >= 0 && i >= 0 && j < matrix.length - 1){ calculateC(matrix, i, j + 1, w); } return result; } This method works on a n*n matrix, but for matrixes with n>=10 it causes java.lang.StackOverflowError And it seems to be because of the function calls in this method. I test it for each matrix with n rows and n columns, the recursive method is being called n*n times. Is it the reason of exception? How can I solve it? I have written the above method with iterative and it works right but I should write this method with divide and conquer too, I tried hard but I don’t know how to solve the problem. java stack-overflow share|improve this question edited Oct 3 '12 at 11:16 Erick Robertson 19.3k74988 asked Dec 22 '10 at 16:35 Elton.fd 5853922 marked as duplicate by Dan Grossman, duffymo, Bert F, Ivo Wetzel, Simone Carletti Dec 22 '10 at 21:15 This question has been asked before and already has an answer. If t
here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow the company Business Learn more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up Java stack overflow error - how to increase the stack size in Eclipse? up vote 49 down vote favorite 17 I am running a program that I've written in Java in Eclipse. The program has a very deep level of recursion for very large inputs. For smaller inputs the program runs fine however when large inputs are given, I get the following error: Exception in thread "main" java.lang.StackOverflowError Can this be solved by increasing the Java stack size and if so, how do I do this in Eclipse? Update: @Jon Skeet The code is traversing a parse tree recursively in order to build up a datastructure. So, for example the code will do some work using a node in the parse tree and call itself on the node's two children, combining their results to give the overall result for the tree. The total depth of the recursion depends on the size of the parse tree but the code seems to fail (without a larger stack) when the number of recursive calls gets into the 1000s. Also I'm pretty sure the code isn't failing because of a bug as it works for small inputs. java eclipse jvm stack-overflow jvm-arguments share|improve this question edited Jan 30 '10 at 19:03 Ether 39.8k1065140 asked Jan 24 '10 at 13:35 tree-hacker 1,55172036 7 something wrong here... stackoverflow(.com) is not an error! :-) –Carlos Heuberger Jan 24 '10 at 14:37 add a comment| 7 Answers 7 active oldest votes up vote 65 down vote accepted Open the Run Configuration for your application (Run/Run Configurations..., then look for the applications entry in 'Java application'). The arguments tab has a text box Vm arguments, enter -Xss1m (or a bigger parameter for the maximum stack size). The default value is 512 kByte (SUN JDK 1.5 - don't know if it varies between vendors and versions). share|improve this answer edited Aug 22 '12 at 10:47 Tvaroh 2,30112430 answered Jan 24 '10 at 13:52 Andreas_D 80.1k8110196 2 Be aware of this issue: bugs.sun.com/bugdatabase/view_bug.do?bug_id=6316197 –Jim Rush Jan 24 '10 at 15:02 add a comment| up vote 37 down vote It may be curable by i