TreeSet equals() method in Java with Example
The equals() method of java.util.TreeSet class is used to compare the specified object with this set for equality. Returns true if and only if the specified object is also a set, both sets have the same size, and all corresponding pairs of elements in the two sets are equal. (Two elements e1 and e2 are equal if (e1==null ? e2==null : e1.equals(e2)).) In other words, two sets are defined to be equal if they contain the same elements in the same order.
public boolean equals(Object o)
Parameters: This method takes the object o as a parameter to be compared for equality with this set.
Returns Value: This method returns true if the specified object is equal to this set.
Below are the examples to illustrate the equals() method.
First TreeSet: [A, B, C, D, E] Second TreeSet: [A, B, C, D, E] Are both set equal: true
First TreeSet: [10, 20, 30, 40, 50] Second TreeSet: [10, 20, 30] Are both set equal: false