What does "this" do in this Java class?

In this class what does "this do"

public class Lab {
      private long id;

      private String location;

      private String description;

      private String owner;

      public String getDescription() {
            return description;
      }

      public void setDescription(String description) {
            this.description = description;
      }

      public long getId() {
            return id;
      }

      public void setId(long id) {
            this.id = id;
      }

      public String getLocation() {
            return location;
      }

      public void setLocation(String location) {
            this.location = location;
      }

      public String getOwner() {
            return owner;
      }

      public void setOwner(String owner) {
            this.owner = owner;
      }
}
yankeebushsoftwareAsked:
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reach2piyushCommented:
Within an instance method or a constructor,
this provides a reference to the current object

In the following method
public void setDescription(String description) {
            this.description = description;
      }

this.desciption points to the instance variable description
whereas just description refers to the local variable
0

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