public class Main{ public static void main(String args[]) { Account accObj1=new Account(1001,"Chandru",50000); Account accObj2=new Account(1001,"Chandru",50000); //Invoke the equals method for the above two objects. System.out.println(.()); }}
Question
public class Main{ public static void main(String args[]) { Account accObj1=new Account(1001,"Chandru",50000); Account accObj2=new Account(1001,"Chandru",50000); //Invoke the equals method for the above two objects. System.out.println(.()); }}
Solution 1
It seems like you want to compare two objects of the Account class using the equals method. However, you didn't provide the equals method invocation in your code. Here's how you can do it:
public class Main{
public static void main(String args[]) {
Account accObj1=new Account(1001,"Chandru",50000);
Account accObj2=new Account(1001,"Chandru",50000);
//Invoke the equals method for the above two objects.
System.out.println(accObj1.equals(accObj2));
}
}
This will print either true or false depending on the implementation of the equals method in your Account class. If you haven't overridden the equals method in your Account class, it will use the default equals method from the Object class, which compares the memory addresses of the objects, not their contents.
If you want to compare the contents of the Account objects (i.e., if the id, name, and balance are the same), you need to override the equals method in your Account class. Here's an example of how you can do it:
public class Account {
private int id;
private String name;
private double balance;
// constructor, getters and setters here
@Override
public boolean equals(Object obj) {
if (this == obj) return true;
if (obj == null || getClass() != obj.getClass()) return false;
Account account = (Account) obj;
return id == account.id &&
Double.compare(account.balance, balance) == 0 &&
name.equals(account.name);
}
}
This equals method first checks if the two objects are the same object (i.e., they have the same memory address). If not, it checks if the other object is null or if it's not an instance of the Account class. If the other object passes these checks, it's cast to an Account object, and then the id, name, and balance are compared. If all these fields are equal, the equals method returns true; otherwise, it returns false.
Solution 2
It seems like you want to compare two objects of the Account class using the equals method. However, you didn't provide the equals method invocation in your code. Here's how you can do it:
public class Main{
public static void main(String args[]) {
Account accObj1=new Account(1001,"Chandru",50000);
Account accObj2=new Account(1001,"Chandru",50000);
//Invoke the equals method for the above two objects.
System.out.println(accObj1.equals(accObj2));
}
}
This will print either true or false depending on the implementation of the equals method in your Account class. If you haven't overridden the equals method in your Account class, it will use the default equals method from the Object class, which compares the memory addresses of the objects, not their contents.
If you want to compare the contents of the objects, you need to override the equals method in your Account class. Here's an example of how you can do it:
public class Account {
private int id;
private String name;
private double balance;
// constructor, getters and setters here
@Override
public boolean equals(Object obj) {
if (this == obj) return true;
if (obj == null || getClass() != obj.getClass()) return false;
Account account = (Account) obj;
return id == account.id &&
Double.compare(account.balance, balance) == 0 &&
name.equals(account.name);
}
}
This equals method first checks if the two objects are the same object (this == obj). If not, it checks if the other object is null or if it's of a different class. If the other object is not null and is an Account object, it casts the other object to an Account and compares the fields. If all fields are equal, it returns true; otherwise, it
Similar Questions
return false accObj1 Object o (Account) accObj2 accObj1 boolean return 1 accObj2 return 0 Object equals (Object) return true Account Fill the code to override the equals method in Object class and invoke that method for 2 account objects and compare the objects. Code : public class Account{ private int accountNumber; private String holderName; private double balance; public Account(int accountNumber, String holderName, double balance) { this.accountNumber = accountNumber; this.holderName = holderName; this.balance = balance; } //Override the equals method in the Object class public equals() { //Downcast Object o to Account acc acc = o; if(this.accountNumber==acc.accountNumber && this.holderName.equals(acc.holderName) && this.balance==acc.balance) ; else ; }}public class Main{ public static void main(String args[]) { Account accObj1=new Account(1001,"Chandru",50000); Account accObj2=new Account(1001,"Chandru",50000); //Invoke the equals method for the above two objects. System.out.println(.()); }}
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ind the output of the below Java program?class Student { int id; Student(int id) { this.id = id; }}public class Test { public static void main(String[] args) { Student s1 = new Student(1001); System.out.println(s1.equals(null)); }}A) trueB) falseC) errorD) Exception
Find the output of the below Java program?public class Test { public static void main(String[] args) { Test t1 = new Test(); Test t2 = t1; System.out.println(t1.equals(t2)); }}A) trueB) falseC) nullD) error
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