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Solution for Lambdas 03 #69

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Solution for Lambdas 03 #69

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e41c9fb
Implement solution
SteffenLm Aug 30, 2023
1bf1e40
Google Java Format
Aug 30, 2023
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4 changes: 2 additions & 2 deletions Exercise.java
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Original file line number Diff line number Diff line change
Expand Up @@ -7,13 +7,13 @@ public static void main(String[] args) {
FilteredStudents adultStudents = new FilteredStudents((student) -> student.age > 18);
adultStudents.add(steffen);
adultStudents.add(kid);
adultStudents.printStudents();
adultStudents.forEach(student -> System.out.println(student.name.toUpperCase()));

System.out.println("-----------------------");

FilteredStudents teenStudents = new FilteredStudents(student -> student.age < 18);
teenStudents.add(steffen);
teenStudents.add(kid);
teenStudents.printStudents();
teenStudents.forEach(student -> System.out.println(student.name.toLowerCase()));
}
}
7 changes: 5 additions & 2 deletions FilteredStudents.java
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Original file line number Diff line number Diff line change
@@ -1,4 +1,5 @@
import java.util.ArrayList;
import java.util.function.Consumer;
import java.util.function.Predicate;

public class FilteredStudents {
Expand All @@ -16,7 +17,9 @@ public void add(Student element) {
}
}

public void printStudents() {
this.students.forEach((student) -> System.out.println(student));
public void forEach(Consumer<Student> consumer) {
for (Student student : students) {
consumer.accept(student);
}
}
}