reciving memory location而不是字符串輸出

-1

當我運行我的程序而不是從我的RightTriangle類中的toString方法接收字符串時，我應該正常收到字符串的內存位置，而我從驅動程序中打印對象時。我該如何解決這個問題？reciving memory location而不是字符串輸出

這是RightTriangleDriver類

import java.util.*; 
public class RightTriangleDriver 
{ 
    public static void main (String [] args) 
     { 
     Scanner reader = new Scanner (System.in); 

     System.out.println ("Enter the length of the first leg "); 
     double leg1 = reader.nextDouble(); 

     System.out.println ("Enter the length of the second leg "); 
     double leg2 = reader.nextDouble(); 

     RightTriangle f1 = new RightTriangle (leg1, leg2); 
     System.out.println (f1); 
     } 
}

這是直角三角形類。

public class RightTriangle 
{ 
private double leg1; 
private double leg2; 
private double hyp; 

public RightTriangle (double one , double two) 
    { 
    leg1 = one; 
    leg2 = two; 
    hyp = Math.sqrt (Math.pow (leg1 , 2) + Math.pow (leg2 , 2)); 
    } 

public double perimiter() 
    { 
    double perimiter = 0; 
    perimiter = leg1 + leg2 + hyp; 
    return perimiter; 
    } 

public double area() 
    { 
    double area = 0; 
    area = (leg1*leg2)/2; 
    return area; 
    } 

public String toSting() 
    { 
    String str; 
    str = "Leg 1 is " + leg1 + " units long. Leg 2 is " + leg2 + " units long." + "\n" + "the Hypotenuse is " + hyp + 
      " units long." + "\n" + " The perimiter is " + perimiter() + " units and the area is " + area() + 
      " units squared."; 
    return str; 
    } 
}

來源

2016-12-02 Cooper Drain

拼寫錯誤'toSting' - >'toString' – talex

fyi，它不是你所看到的內存位置，那是一個散列。有關更多信息，請參見[this]（http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html#toString（））。 –

方法名是toString。您沒有正確書寫。

每當您重寫超類的方法時使用@Override註釋（toString是每個類默認繼承的Object類的方法）。這將幫助你知道你是否真的壓倒了這個方法。

來源

2016-12-02 18:56:11 SachinSarawgi

reciving memory location而不是字符串輸出

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