code: package gr.uom.java.distance;
  
  public class MyAttributeInstruction {
  
      private String classOrigin;
      private String classType;
      private String name;
      private boolean reference;
  
      public MyAttributeInstruction(String classOrigin, String classType, String name) {
          this.classOrigin = classOrigin;
          this.classType = classType;
          this.name = name;
          this.reference = false;
      }
  
      public boolean isReference() {
          return reference;
      }
  
      public void setReference(boolean reference) {
          this.reference = reference;
      }
      
      public String getClassOrigin() {
          return classOrigin;
      }
  
      public void setClassOrigin(String classOrigin) {
          this.classOrigin = classOrigin;
      }
  
      public String getClassType() {
          return classType;
      }
  
      public String getName() {
          return name;
      }
  
      public boolean equals(Object o) {
          if(this == o) {
              return true;
          }
  
          if (o instanceof MyAttributeInstruction) {
              MyAttributeInstruction attribute = (MyAttributeInstruction)o;
              return this.classOrigin.equals(attribute.classOrigin) && this.classType.equals(attribute.classType) &&
                  this.name.equals(attribute.name);
          }
          return false;
      }
  
      public String toString() {
          StringBuilder sb = new StringBuilder();
          sb.append(classOrigin).append("::");
          sb.append(classType).append(" ");
          sb.append(name);
          return sb.toString();
      }
  }
  