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class Dog{
     private String name;
     private int age;
 
public boolean equals(Object obj) {
    if(!(obj instanceof Dog)) return false;
    if (this.name.equals(obj.name) && (this.age == obj.age)) {
     return true;
    }
    else {
     return false;
    }
  }
}

Main.java:7: error: cannot find symbol
    if (this.name.equals(obj.name) && (this.age == obj.age)) {
                            ^
  symbol:   variable name
  location: variable obj of type Object
Main.java:7: error: cannot find symbol
    if (this.name.equals(obj.name) && (this.age == obj.age)) {
                                                      ^
  symbol:   variable age
  location: variable obj of type Object
2 errors

Standard output is empty