Difference between "case class" and "class" in Scala

ExampleClass.scala

/**
 * Case classes define a factory method for creating instances:
 *   - lines 24-25 don't have the "new" keyword.
 *
 * Case classes generate implementations of toString, hashCode and quals:
 *   - see output in lines 24-27
 * 
 * Much more differences, like immutability and generation of companion object.
 *
 * Note that in order to run the snippet below, use "scala" directly, don't attempt to compile with "scalac".
 */

// case class
case class StudentCase(name: String, age: Int)

// class
class Student(name: String, age: Int)


var student1 = new Student("test", 10) 
var student2 = new Student("test", 10) 

// hash codes are different
println(student1.hashCode)
println(student2.hashCode)
// so result is false
println(student1 == student2)

var studentCase1 = StudentCase("test", 10) 
var studentCase2 = StudentCase("test", 10) 

// hash codes are the same
println(studentCase1.hashCode)
println(studentCase2.hashCode)
// so result is true
println(studentCase1 == studentCase2)