Java Suppose that the class Score is defined as class ScoreInfo { String firstName; String lastName; int score; Score( String lName, String fName, int s ) { firstName = fName; lastName = lName; score = s; } } and that scoreData is an array of ScoreInfos containing information about the scores of students on a test. Use the stream API to do each of the following tasks: print the number of students (without using scoreData.length) print the average score for all of the students print the number of students who got an A (score greater than or equal to 90) use the collect() stream operation to create a List that contains the names of students whose score was less than 70; the names should be in the form first name followed by last name print the names from the List that was generated in the previous task print out the student's names and scores, ordered last name print out the student's names and scores, ordered by score You can put all of the code in main() routine and include ScoreInfo as a static nested class. Do not use any for loops or other control structures. Do everything using the stream API. For testing your code, you can use this array: private static ScoreInfo[] scoreData = new ScoreInfo[] { new Score("Smith","John",70), new Score("Doe","Mary",85), new Score("Page","Alice",82), new Score("Cooper","Jill",97), new Score("Flintstone","Fred",66), new Score("Rubble","Barney",80), new Score("Smith","Judy",48), new Score("Dean","James",90), new Score("Russ","Joe",55), new Score("Wolfe","Bill",73), new Score("Dart","Mary",54), new Score("Rogers","Chris",78), new Score("Toole","Pat",51), new Score("Khan","Omar",93), new Score("Smith","Ann",95) };
Java Suppose that the class Score is defined as class ScoreInfo { String firstName; String lastName; int score; Score( String lName, String fName, int s ) { firstName = fName; lastName = lName; score = s; } } and that scoreData is an array of ScoreInfos containing information about the scores of students on a test. Use the stream API to do each of the following tasks: print the number of students (without using scoreData.length) print the average score for all of the students print the number of students who got an A (score greater than or equal to 90) use the collect() stream operation to create a List that contains the names of students whose score was less than 70; the names should be in the form first name followed by last name print the names from the List that was generated in the previous task print out the student's names and scores, ordered last name print out the student's names and scores, ordered by score You can put all of the code in main() routine and include ScoreInfo as a static nested class. Do not use any for loops or other control structures. Do everything using the stream API. For testing your code, you can use this array: private static ScoreInfo[] scoreData = new ScoreInfo[] { new Score("Smith","John",70), new Score("Doe","Mary",85), new Score("Page","Alice",82), new Score("Cooper","Jill",97), new Score("Flintstone","Fred",66), new Score("Rubble","Barney",80), new Score("Smith","Judy",48), new Score("Dean","James",90), new Score("Russ","Joe",55), new Score("Wolfe","Bill",73), new Score("Dart","Mary",54), new Score("Rogers","Chris",78), new Score("Toole","Pat",51), new Score("Khan","Omar",93), new Score("Smith","Ann",95) };
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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Question
Java
Suppose that the class Score is defined as
class ScoreInfo {
String firstName;
String lastName;
int score;
Score( String lName, String fName, int s ) {
firstName = fName;
lastName = lName;
score = s;
}
}
and that scoreData is an array of ScoreInfos containing information about the scores of students on a test. Use the stream API to do each of the following tasks:
print the number of students (without using scoreData.length)
print the average score for all of the students
print the number of students who got an A (score greater than or equal to 90)
use the collect() stream operation to create a List that contains the names of students whose score was less than 70; the names should be in the form first name followed by last name
print the names from the List that was generated in the previous task
print out the student's names and scores, ordered last name
print out the student's names and scores, ordered by score
You can put all of the code in main() routine and include ScoreInfo as a static nested class. Do not use any for loops or other control structures. Do everything using the stream API. For testing your code, you can use this array:
private static ScoreInfo[] scoreData = new ScoreInfo[] {
new Score("Smith","John",70),
new Score("Doe","Mary",85),
new Score("Page","Alice",82),
new Score("Cooper","Jill",97),
new Score("Flintstone","Fred",66),
new Score("Rubble","Barney",80),
new Score("Smith","Judy",48),
new Score("Dean","James",90),
new Score("Russ","Joe",55),
new Score("Wolfe","Bill",73),
new Score("Dart","Mary",54),
new Score("Rogers","Chris",78),
new Score("Toole","Pat",51),
new Score("Khan","Omar",93),
new Score("Smith","Ann",95)
};
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