JavaTuples equal() method

Last Updated : 09 Nov, 2022

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() method  import 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("GeeksforGeeks");          // 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 [GeeksforGeeks] equal to [GeeksNotforGeeks] : false

Program 2: Using equals() with Quartet class:

Java

// Below is a Java program to use equals() method  import 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("GeeksforGeeks");         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 = { "GeeksforGeeks",                          "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  [GeeksforGeeks, A computer portal, for geeks, by Sandeep Jain]  equal to  [GeeksforGeeks, A computer portal, for geeks, by Sandeep Jain]  : true

Note: Similarly, it can be used with any other JavaTuple Class.

JavaTuples containsAll() method

RishabhPrabhu

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