The equals() method in org.javatuples is used to check whether a TupleClass is equal to the TupleClass given as parameter. This method can be used to any tuple class object of javatuples library. It returns a boolean value that is true or false based on the equivalence of that TupleClass with existing TupleClass. Method Declaration:
public final boolean equals(Object obj)
Syntax:
boolean result = TupleClassObject.equals(TupleClass2Object)
Parameters: This method takes TupleClass2Object as parameter where:
- TupleClassObject– represents the JavaTuple Class object used like Unit, Quintet, Decade, etc.
- TupleClass2Object– represents the parameter passed JavaTuple Class object used like Unit, Quintet, Decade, etc.
Return Value: This method returns true if the TupleClassObject is equal to the TupleClass2Object. Else it returns false Below programs illustrate the various ways to use equals() method: Program 1: Using equals() with Unit class:
Java
// Below is a Java program to use equals() methodimport java.util.*;import org.javatuples.Unit;class GfG { public static void main(String[] args) { // Creating an Unit with one value Unit<String> unit = Unit.with("Lazyroar"); // Creating another Unit with one value Unit<String> unit1 = Unit.with("GeeksNotforGeeks"); // Using equals() method boolean res = unit.equals(unit1); System.out.println("Is " + unit + " equal to " + unit1 + " : " + res); }} |
Output:
Is [Lazyroar] equal to [GeeksNotforGeeks] : false
Program 2: Using equals() with Quartet class:
Java
// Below is a Java program to use equals() methodimport java.util.*;import org.javatuples.Quartet;class GfG { public static void main(String[] args) { // Creating Quartet from List List<String> list = new ArrayList<String>(); list.add("Lazyroar"); list.add("A computer portal"); list.add("for geeks"); list.add("by Sandeep Jain"); Quartet<String, String, String, String> quartet = Quartet.fromCollection(list); // Creating Quartet from Array String[] arr = { "Lazyroar", "A computer portal", "for geeks", "by Sandeep Jain" }; Quartet<String, String, String, String> otherQuartet = Quartet.fromArray(arr); // Using equals() method boolean res = quartet.equals(otherQuartet); System.out.println("Is \n" + quartet + "\n equal to \n" + otherQuartet + "\n : " + res); }} |
Output:
Is [Lazyroar, A computer portal, for geeks, by Sandeep Jain] equal to [Lazyroar, A computer portal, for geeks, by Sandeep Jain] : true
Note: Similarly, it can be used with any other JavaTuple Class.
