Accessors and Mutators in JAVA

Accessors:
API's or methods which were used to get the current state of an object.

Mutators:
API's or methods which were used to change the state of an object.
Ex: set(int a);

An object has mainly two things state and behaviour.. State denotes the instance variables of a class and Behaviour denotes the methods or API's in class[ which is blueprint of an object] .
class Animal{
private int color;

  public void getColor(){
  return color;
  }
public setColor(int color){
this.color = color;
}
}

In this program, getColor is an Accessor setColor is Mutator