4.1. What data type is T when maximum is called with 3, 4, 5? 4.2. What data type is T when maximum is called with 6.6, 8.8, 7.7? 4.3. What data type is the variable max when maximum is called with "pear", "apple", "orange"?
4.1. What data type is T when maximum is called with 3, 4, 5? 4.2. What data type is T when maximum is called with 6.6, 8.8, 7.7? 4.3. What data type is the variable max when maximum is called with "pear", "apple", "orange"?
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
Answer the following questions based on the JAVA code provided.
Transcribed Image Text:4.1. What data type is T when maximum is called with 3, 4, 5?
4.2. What data type is T when maximum is called with 6.6, 8.8, 7.7?
4.3. What data type is the variable max when maximum is called with "pear", "apple", "orange"?
4.4. Suppose maximum was defined as:
public static <E extends Comparable<E>> E maximum (E x, E y, E z)
Which definition for max is correct?
a. E max = x;
b. T max <E> = x;
C. x max = new E();
d. I max = new E();
4.5. Why does maximum use compare To instead of ==? (Hint: why can't you use == with object
reference variables?
![Create the following Java class to demonstrate Generics.
public class MaximumTest {
// determines the largest of three Comparable objects
}
public static <T extends Comparable<T>> T maximum(T x, Ty, T z) {
T max = x; // assume x is initially the largest
}
if(y.compareTo(max) > 0) {
max = y; //y is the largest so far
}
if(z.compareTo(max) > 0) {
max = z; // z is the largest now
}
return max; // returns the largest object
public static void main(String args[]) {
System.out.printf("Max of %d, %d and %d is %d\n\n",
3, 4, 5, maximum( 3, 4, 5));
System.out.printf("Max of %.1f, %.1f and %.1f is %.1f\n\n",
6.6, 8.8, 7.7, maximum( 6.6, 8.8, 7.7 ));
System.out.printf("Max of %s, %s and %s is %s\n", "pear",
"apple", "orange", maximum ("pear", "apple", "orange"));](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fca76fac2-1440-4992-8707-39fd3f211841%2Fd4a1961f-2fa7-4842-835e-e86e8e8c88c2%2Fhkeu0oyf_processed.png&w=3840&q=75)
Transcribed Image Text:Create the following Java class to demonstrate Generics.
public class MaximumTest {
// determines the largest of three Comparable objects
}
public static <T extends Comparable<T>> T maximum(T x, Ty, T z) {
T max = x; // assume x is initially the largest
}
if(y.compareTo(max) > 0) {
max = y; //y is the largest so far
}
if(z.compareTo(max) > 0) {
max = z; // z is the largest now
}
return max; // returns the largest object
public static void main(String args[]) {
System.out.printf("Max of %d, %d and %d is %d\n\n",
3, 4, 5, maximum( 3, 4, 5));
System.out.printf("Max of %.1f, %.1f and %.1f is %.1f\n\n",
6.6, 8.8, 7.7, maximum( 6.6, 8.8, 7.7 ));
System.out.printf("Max of %s, %s and %s is %s\n", "pear",
"apple", "orange", maximum ("pear", "apple", "orange"));
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