- Java.lang Package classes
- Java.lang - Home
- Java.lang - Boolean
- Java.lang - Byte
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- 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
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- Java.lang Package Useful Resources
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Java - Enum compareTo() method
Description
The Java Enum compareTo() method compares this enum with the specified object for order.Enum constants are only comparable to other enum constants of the same enum type.
Declaration
Following is the declaration for java.lang.Enum.compareTo() method
public final int compareTo(E o)
Parameters
o − This is the object to be compared.
Return Value
This method returns a negative integer, zero, or a positive integer as this object is less than, equal to, or greater than the specified object.
Exception
NA
Example 1
The following example shows the usage of compareTo() method for various enum values of same enum type to check a result which is greater than 0.
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; t1 = Tutorials.Java; t2 = Tutorials.HTML; if(t1.compareTo(t2) > 0) { System.out.println(t2 + " completed before " + t1); } else if(t1.compareTo(t2) < 0) { System.out.println(t1 + " completed before " + t2); } else if(t1.compareTo(t2) == 0) { System.out.println(t1 + " completed with " + t2); } } }
Output
Let us compile and run the above program, this will produce the following result −
Java completed before HTML
Example 2
The following example shows the usage of compareTo() method for various enum values of same enum type to check a result which is same as 0.
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; t1 = Tutorials.HTML; t2 = Tutorials.HTML; if(t1.compareTo(t2) > 0) { System.out.println(t2 + " completed before " + t1); } else if(t1.compareTo(t2) < 0) { System.out.println(t1 + " completed before " + t2); } else if(t1.compareTo(t2) == 0) { System.out.println(t1 + " completed with " + t2); } } }
Output
Let us compile and run the above program, this will produce the following result −
HTML completed with HTML
Example 3
The following example shows the usage of compareTo() method for various enum values of same enum type to check a result which is less than 0.
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; t1 = Tutorials.HTML; t2 = Tutorials.Python; if(t1.compareTo(t2) > 0) { System.out.println(t2 + " completed before " + t1); } else if(t1.compareTo(t2) < 0) { System.out.println(t1 + " completed before " + t2); } else if(t1.compareTo(t2) == 0) { System.out.println(t1 + " completed with " + t2); } } }
Output
Let us compile and run the above program, this will produce the following result −
HTML completed before Python
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