angular-hotel-manager/src/app/Parent/parent.component.ts

import { Component } from '@angular/core';
import { ChildComponent } from '../Child/child.component';

@Component({
  selector: 'app-parent',
  standalone: true,
  templateUrl: './parent.component.html',
  imports: [ChildComponent],
})
export class ParentComponent {
  public balance = 1000;

  public addFifty() {
    this.balance += 50;
  }
}