java – 在下面的代码中使用toString()方法的目的是什么？

参见英文答案 > How to override toString() properly in Java?????????????????????????????????????11个
根据我的理解,toString()方法允许转换类型示例：int x = 5,sys ….(x.toString())并将5打印到控制台.但是,与我的代码相反,这样做的好处/弊端是什么？ (不是说我的更好,我真的很好奇)

这是我的代码：

public class GitFiddle {

    //Initalize class variables.
    private String guitarMake;
    private String guitarModel;
    private int numOfStrings;
    private String notes;
    private int jumboFrets;
    private String neckType;
    private String fingerBoard;
    private String humPickUps;
    private boolean tuned;


    //A constructor that has specific variables assigned to it.
    public GitFiddle (String guitarMake,String guitarModel,int    numOfStrings,String notes,int jumboFrets,String neckType,String fingerBoard,String humPickUps,boolean tuned) {
        this.guitarMake = guitarMake;
        this.guitarModel = guitarModel;
        this.numOfStrings = numOfStrings;
        this.notes = notes;
        this.jumboFrets = jumboFrets;
        this.neckType = neckType;
        this.fingerBoard = fingerBoard;
        this.humPickUps = humPickUps;
        this.tuned = tuned;
    }

    //Created the output that will be displayed to the user. 
    public String output()
    {
        return "My guitar is an " + guitarMake + "," + " " + guitarModel + "  which is a " + 
        numOfStrings + "-string,electric guitar." + "nThe standard tuning for this guitar is as follows(from low to high): " 
        + notes + "." + "nIt has " + jumboFrets + " jumbo frets on a " + neckType + ",a " + fingerBoard + 
        " fingerboard and pearl,dot inlays." + "nIt also has dual " + humPickUps + 
        " humbucker pickups which is perfect for some sweet metal action!" + 
        "nIs this 7-string beauty tuned up and ready to play?: " + tuned +   "nAre you ready?";
    }

    public static void main(String args[])
    {
        //Create an instance of household item method.
        GitFiddle guitar = new GitFiddle ("Ibanez","S-7 320 EX",7,"B E A D G B E",22,"Wizard,W-7 II neck","rosewood","EMG 81 85",true);

        //Output the status of the household item.
        System.out.println(guitar.output());
    }
}