by @kodeazy

what is the use of toString() method in java?

Home » java » what is the use of toString() method in java?
  • toString() method provides the string representation of the Object in java

  • It is Inherited from the Object class, which is parent class of all classes in java.

    public String toString(){
    return "name is:"+name+" Age is:"+age+"salary is :"+salary+"\n";
}

  • Below is an Example of printing an Object without using toString() method in java.

    public class ToStringExample {
public static void main(String args[]){
    Employee e= new Employee(27,100,"John");
    System.out.println(e);

}
}
class Employee{
int age;
int salary;
String name;
Employee(int age,int salary,String name){
    this.age=age;
    this.salary=salary;
    this.name=name;

}
}

    Output:

Employee@3fee733d
  • The output I got is hashcode of the object

  • To get the desired string we use toString() method as below

    public class ToStringExample {
public static void main(String args[]){
    Employee e= new Employee(27,100,"John");
    System.out.println(e);

}
}
class Employee{
int age;
int salary;
String name;
Employee(int age,int salary,String name){
    this.age=age;
    this.salary=salary;
    this.name=name;

}
public String toString(){
    return "name is:"+name+" Age is:"+age+"salary is :"+salary+"\n";
}
}

    Output:

    name is:John Age is:27salary is :100