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Rust program to create a structure with default values

Rust | Structure Example: Write a program to create a structure with default values.
Last Updated : October 27, 2021

Problem Statement

In this program, we will create a structure with few members. Then we will create an object of created and initialize structure with default values.

Program/Source Code

The source code to create a structure with Default values is given below. The given program is compiled and executed successfully.

// Rust program to create a structure 
// with default values

#[derive(Default)]

struct Employee {
   eid:u32,
   name:String,
   salary:u32
}

fn main() {
   let mut emp:Employee= Employee::default();
   
   println!("Employee Information");
   println!("  Employee ID    : {}",emp.eid );
   println!("  Employee Name  : {}",emp.name);
   println!("  Employee Salary: {}",emp.salary);
}

Output

Employee Information
  Employee ID    : 0
  Employee Name  : 
  Employee Salary: 0

Explanation

In the above program, we created a structure Employee and a function main(). The Employee structure contains three members eid, name, and salary.

In the main() function, we created the object of structure and initialized it with default values using the default() method. After that, we printed the result.

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