Throwable類toString()方法 (Throwable Class toString() method)

• toString() Method is available in java.lang package.

  toString()方法在java.lang包中可用。

• toString() Method is used to return a short description of the exception.

  toString()方法用于返回對該異常的簡短描述。

• toString() Method is a non-static method, it is accessible with the class object only and if we try to access the method with the class name then we will get an error.

  toString()方法是一種非靜態方法，只能通過類對象訪問，如果嘗試使用類名稱訪問該方法，則會收到錯誤消息。

• toString() Method does not throw an exception at the time of string representation about the exception.

  toString()方法在有關異常的字符串表示時不會引發異常。

Syntax:

句法：

public String toString();

Parameter(s):

參數：

• It does not accept any parameter.

  它不接受任何參數。

Return value:

返回值：

The return type of the method is String, it represents string for the exception.

方法的返回類型為String ，它表示異常的字符串。

Example:

例：

// Java program to demonstrate the example // of String toString() method of Throwable public class ToString {public static void main(String args[]) throws Exception {try {div(-3, 0);} catch (Exception ex) {System.out.println("ex.toString() :" + ex.toString());}}// This method divide number by 0public static void div(int d1, int d2) throws Exception {int res = d1 / d2;System.out.println("res :" + res);} }

Output

輸出量

ex.toString() :java.lang.ArithmeticException: / by zero

翻譯自: https://www.includehelp.com/java/throwable-tostring-method-with-example.aspx

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