Reference:Java.util.Comparator

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java.util
public interface java.util.Comparator

java.util.Comparator

Comparator is used to compare two objects to determine their ordering in respect to each other.

Contents 1 Known Indirect Subclasses 2 Summary 2.1 Public Methods 3 Details 3.1 Public Methods 3.1.1 public int compare(T object1, T object2) 3.1.2 public boolean equals(Object object) 4 References

[edit] Known Indirect Subclasses

ApplicationInfo.DisplayNameComparator, Collator, CookieIdentityComparator, CookiePathComparator, PackageItemInfo.DisplayNameComparator, ResolveInfo.DisplayNameComparator, RuleBasedCollator

[edit] Summary

[edit] Public Methods

				int	compare (T object1, T object2)
					Compare the two objects to determine the relative ordering.
				boolean	equals (Object object)
					Compares the argument to the receiver, and answers true if they represent the same object using a class specific comparison.

[edit] Details

[edit] Public Methods

[edit] public int compare(T object1, T object2)

Compare the two objects to determine the relative ordering.

Parameters

object1	an Object to compare
object2	an Object to compare

Returns

• an int < 0 if object1 is less than object2, 0 if they are equal, and > 0 if object1 is greater

Throws

ClassCastException	when objects are not the correct type

[edit] public boolean equals(Object object)

Compares the argument to the receiver, and answers true if they represent the same object using a class specific comparison.

Parameters

object	Object the object to compare with this object.

Returns

• boolean true if the object is the same as this object false if it is different from this object.

See Also

• hashCode()

[edit] References

• Original documentation page for Android SDK build m5-rc15e - 14 apr 2008 17:27