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3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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25 
26 package java.util;
27 
28 /**
29  * Thrown by various accessor methods to indicate that the element being requested
30  * does not exist.
31  *
32  * @see     java.util.Enumeration#nextElement()
33  * @see     java.util.Iterator#next()
34  * @since   1.0
35  */
36 public class NoSuchElementException extends RuntimeException {
37     @java.io.Serial
38     private static final long serialVersionUID = 6769829250639411880L;
39 
40     /**
41      * Constructs a {@code NoSuchElementException} with {@code null}
42      * as its error message string.
43      */
NoSuchElementException()44     public NoSuchElementException() {
45         super();
46     }
47 
48     /**
49      * Constructs a {@code NoSuchElementException} with the specified detail
50      * message and cause.
51      *
52      * @param s     the detail message, or null
53      * @param cause the cause (which is saved for later retrieval by the
54      *              {@link #getCause()} method), or null
55      * @since 15
56      */
NoSuchElementException(String s, Throwable cause)57     public NoSuchElementException(String s, Throwable cause) {
58         super(s, cause);
59     }
60 
61     /**
62      * Constructs a {@code NoSuchElementException} with the specified cause.
63      * The detail message is set to {@code (cause == null ? null :
64      * cause.toString())} (which typically contains the class and
65      * detail message of {@code cause}).
66      *
67      * @param cause the cause (which is saved for later retrieval by the
68      *              {@link #getCause()} method)
69      * @since 15
70      */
NoSuchElementException(Throwable cause)71     public NoSuchElementException(Throwable cause) {
72         super(cause);
73     }
74 
75     /**
76      * Constructs a {@code NoSuchElementException}, saving a reference
77      * to the error message string {@code s} for later retrieval by the
78      * {@code getMessage} method.
79      *
80      * @param   s   the detail message.
81      */
NoSuchElementException(String s)82     public NoSuchElementException(String s) {
83         super(s);
84     }
85 }
86