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Java Collections - Interview Questions
Explain equals() with example
Equals() verifies whether the number object is equal to the object, which is passed as an argument or not.
 
The syntax of the equals() method is :
public boolean equals(Object o)
This method takes two parameters 1) any object, 2) return value. It returns true if the passed argument is not null and is an object of a similar type having the same numeric value.
 
Example :
import java.lang.Integer;
public class Test { 
   public static void main(String args[]) {
      Integer p = 5;
      Integer q = 20;
      Integer r =5;
      Short s = 5;
      System.out.println(p.equals(q));  
      System.out.println(p.equals(r)); 
      System.out.println(p.equals(s));
   }
}
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