- Java.lang Package classes
- Java.lang - Home
- Java.lang - Boolean
- Java.lang - Byte
- Java.lang - Character
- Java.lang - Character.Subset
- Java.lang - Character.UnicodeBlock
- Java.lang - Class
- Java.lang - ClassLoader
- Java.lang - Compiler
- Java.lang - Double
- Java.lang - Enum
- Java.lang - Float
- Java.lang - InheritableThreadLocal
- Java.lang - Integer
- Java.lang - Long
- Java.lang - Math
- Java.lang - Number
- Java.lang - Object
- Java.lang - Package
- Java.lang - Process
- Java.lang - ProcessBuilder
- Java.lang - Runtime
- Java.lang - RuntimePermission
- Java.lang - SecurityManager
- Java.lang - Short
- Java.lang - StackTraceElement
- Java.lang - StrictMath
- Java.lang - String
- Java.lang - StringBuffer
- Java.lang - StringBuilder
- Java.lang - System
- Java.lang - Thread
- Java.lang - ThreadGroup
- Java.lang - ThreadLocal
- Java.lang - Throwable
- Java.lang - Void
- Java.lang Package extras
- Java.lang - Interfaces
- Java.lang - Errors
- Java.lang - Exceptions
- Java.lang Package Useful Resources
- Java.lang - Useful Resources
- Java.lang - Discussion
Java - Enum equals() method
Description
The java Enum.equals() method returns true if the specified object is equal to this enum constant.
Declaration
Following is the declaration for java.lang.Enum.equals() method
public final boolean equals(Object other)
Parameters
other − This is the object to be compared for equality with this object.
Return Value
This method returns true if the specified object is equal to this enum constant.
Exception
NA
Example 1
The following example shows the usage of equals() method for various enum values of same enum type where all provided enums are unique.
package com.tutorialspoint; // enum showing topics covered under Tutorials enum Tutorials { Java, HTML, Python; } public class EnumDemo { public static void main(String args[]) { Tutorials t1, t2, t3; t1 = Tutorials.Java; t2 = Tutorials.HTML; t3 = Tutorials.Python; if(t1.equals(t2)) { System.out.println(t1 + " is equal to " + t2); } else if(t2.equals(t3)) { System.out.println(t2 + " is equal to " + t3); } else if(t1.equals(t3)) { System.out.println(t1 + " is equal to " + t3); } else { System.out.println("all 3 topics are different"); } } }
Output
Let us compile and run the above program, this will produce the following result −
all 3 topics are different
Example 2
The following example shows the usage of equals() method for various enum values of same enum type where first two enums are same.
package com.tutorialspoint; // enum showing topics covered under Tutorials enum Tutorials { Java, HTML, Python; } public class EnumDemo { public static void main(String args[]) { Tutorials t1, t2, t3; t1 = Tutorials.Java; t2 = Tutorials.Java; t3 = Tutorials.Python; if(t1.equals(t2)) { System.out.println(t1 + " is equal to " + t2); } else if(t2.equals(t3)) { System.out.println(t2 + " is equal to " + t3); } else if(t1.equals(t3)) { System.out.println(t1 + " is equal to " + t3); } else { System.out.println("all 3 topics are different"); } } }
Output
Let us compile and run the above program, this will produce the following result −
Java is equal to Java
Example 3
The following example shows the usage of equals() method for various enum values of same enum type where all provided enums are unique and one enum is null.
package com.tutorialspoint; // enum showing topics covered under Tutorials enum Tutorials { Java, HTML, Python; } public class EnumDemo { public static void main(String args[]) { Tutorials t1, t2, t3; t1 = Tutorials.Java; t2 = Tutorials.HTML; t3 = null; if(t1.equals(t2)) { System.out.println(t1 + " is equal to " + t2); } else if(t2.equals(t3)) { System.out.println(t2 + " is equal to " + t3); } else if(t1.equals(t3)) { System.out.println(t1 + " is equal to " + t3); } else { System.out.println("all 3 topics are different"); } } }
Output
Let us compile and run the above program, this will produce the following result −
all 3 topics are different
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