An error occurred while implementing illegal access in Java.

Source: Internet
Author: User

Create a matched "hash"

Train of Thought Analysis:

The Code is as follows:

Import java. lang. reflect. Field; public class ExceptionTest {public static void main (String [] args) {Class <?> Clazz = String. class; // obtain the Field [] fields = clazz. getDeclaredFields (); for (Field field: fields) {// traverses all domains System. out. println (field); if (field. getName (). equals ("hash") {// If the domain name is hash try {System. out. println (field. getInt ("hash"); // output hash value} catch (IllegalArgumentException e) {// catch IllegalArgumentException exception System. out. println (e);} catch (IllegalAccessException e) {// catch IllegalAccessException exception System. out. println (e );}}}}}

Effect

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