Java程序在windows环境下执行时，会产生不同的输出结果

Question

    public  HashMap&ltString, HashSet&ltString>> nodeListFromFile = new HashMap&ltString, HashSet&ltString>>();

Funciton:
    public void getAllPaths(String root, String path){
        //Since we are assuming there are approximately 12-16 levels
        //And we are expecting a LCA in less than 16 steps
        //All paths evaluated are of max size of 16 using this counter
        int stepCounter = 0;
        File file = new File(outPutfilePath);

        try{
            if(!file.exists()){
                file.createNewFile();
            }  


            FileWriter fw = new FileWriter(file,true);
            BufferedWriter bw = new BufferedWriter(fw);

            //Iterate over each child node
            for(String childNode: nodeListFromFile.get(root)){
                String tempPath = path;
                if((tempPath.indexOf(childNode)  grandChildSet = nodeListFromFile.get(childNode);
                    boolean goodGrandChild = true;
                    for(String gc: grandChildSet){
                        if(!path.contains(gc))
                            goodGrandChild = false;
                    }

                    if(grandChildSet.size()==0 || goodGrandChild){
                        bw.write(tempPath+System.getProperty("line.separator"));
                        bw.flush();
                    }
                }
            }
            //End iteration of children
        }
        catch (Exception e) {
            // TODO: handle exception
        }
        finally{
        }

    }//End of function

Answer 1

您可以使用line.separator，这与系统有关。

• 它是\r\n用于Windows。
• 它是\r用于Mac。

同样（位相关），

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