Difference between revisions of "Iterable Range Assignment"
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(Created page with "=Code To Implement= <nowiki>public static Iterable<Integer> minToMaxExclusive(int min, int maxExclusive)</nowiki>") |
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+ | =Java= | ||
+ | [https://www.w3schools.com/java/java_methods_overloading.asp Method Overloading] | ||
+ | |||
+ | [https://docs.oracle.com/javase/tutorial/java/javaOO/nested.html Nested Inner Classes] | ||
+ | |||
+ | [https://docs.oracle.com/javase/tutorial/java/javaOO/anonymousclasses.html Anonymous Classes] | ||
+ | |||
+ | [https://docs.oracle.com/javase/tutorial/java/javaOO/lambdaexpressions.html Lambda Expressions] | ||
+ | |||
+ | interface [https://docs.oracle.com/javase/8/docs/api/java/lang/Iterable.html java.lang.Iterable<T>] | ||
+ | :[https://docs.oracle.com/javase/8/docs/api/java/lang/Iterable.html#iterator-- iterator()] | ||
+ | |||
+ | interface [https://docs.oracle.com/javase/8/docs/api/java/util/Iterator.html java.util.Iterator<T>] | ||
+ | :[https://docs.oracle.com/javase/8/docs/api/java/util/Iterator.html#hasNext-- hasNext()] | ||
+ | :[https://docs.oracle.com/javase/8/docs/api/java/util/Iterator.html#next-- next()] | ||
+ | |||
=Code To Implement= | =Code To Implement= | ||
− | < | + | {{JavaToImplement|Iterables|range<br/>range<br/>range<br/>range|range.warmup}} |
+ | |||
+ | Each of the overloaded range methods must return an Iterable of the appropriate generic type. We have provided nested inner classes for IntegerRangeIterator and IntegerRangeIterable. Feel free to implement these or delete them if you would prefer to build your Integer range methods with anonymous inner classes and or a lambda and an anonymous inner class. For the Double range methods, you can define your own named nested inner classes or got the anonymous inner class/lambda route as you wish. | ||
+ | ==Integers== | ||
+ | ===range(min, maxExclusive, step)=== | ||
+ | public static Iterable<Integer> range(int min, int maxExclusive, int step) | ||
+ | |||
+ | ===range(min, maxExclusive)=== | ||
+ | public static Iterable<Integer> range(int min, int maxExclusive) | ||
+ | |||
+ | range with a step of 1 | ||
+ | ==Doubles== | ||
+ | ===range(min, maxExclusive, step)=== | ||
+ | public static Iterable<Double> range(double min, double maxExclusive, double step) | ||
+ | ===range(min, maxExclusive)=== | ||
+ | public static Iterable<Double> range(double min, double maxExclusive) | ||
+ | |||
+ | range with a step of 1.0 | ||
+ | |||
+ | =Client= | ||
+ | {{Example|RangeClient|range.client}} | ||
+ | |||
+ | The code: | ||
+ | <nowiki>for (int i : Iterables.range(4, 12)) { | ||
+ | System.out.println(i); | ||
+ | } | ||
+ | System.out.println(); | ||
+ | for (double d : Iterables.range(3.0, 7.1, 0.25)) { | ||
+ | System.out.println(d); | ||
+ | }</nowiki> | ||
+ | |||
+ | produces the output: | ||
+ | <nowiki>4 | ||
+ | 5 | ||
+ | 6 | ||
+ | 7 | ||
+ | 8 | ||
+ | 9 | ||
+ | 10 | ||
+ | 11 | ||
+ | |||
+ | 3.0 | ||
+ | 3.25 | ||
+ | 3.5 | ||
+ | 3.75 | ||
+ | 4.0 | ||
+ | 4.25 | ||
+ | 4.5 | ||
+ | 4.75 | ||
+ | 5.0 | ||
+ | 5.25 | ||
+ | 5.5 | ||
+ | 5.75 | ||
+ | 6.0 | ||
+ | 6.25 | ||
+ | 6.5 | ||
+ | 6.75 | ||
+ | 7.0</nowiki> | ||
+ | |||
+ | =Test= | ||
+ | {{TestSuite|IterableRangeTestSuite|range.warmup}} |
Latest revision as of 03:52, 26 November 2022
Contents
Java
interface java.lang.Iterable<T>
interface java.util.Iterator<T>
Code To Implement
class: | Iterables.java | ![]() |
methods: | range range range range |
|
package: | range.warmup | |
source folder: | src/main/java |
Each of the overloaded range methods must return an Iterable of the appropriate generic type. We have provided nested inner classes for IntegerRangeIterator and IntegerRangeIterable. Feel free to implement these or delete them if you would prefer to build your Integer range methods with anonymous inner classes and or a lambda and an anonymous inner class. For the Double range methods, you can define your own named nested inner classes or got the anonymous inner class/lambda route as you wish.
Integers
range(min, maxExclusive, step)
public static Iterable<Integer> range(int min, int maxExclusive, int step)
range(min, maxExclusive)
public static Iterable<Integer> range(int min, int maxExclusive)
range with a step of 1
Doubles
range(min, maxExclusive, step)
public static Iterable<Double> range(double min, double maxExclusive, double step)
range(min, maxExclusive)
public static Iterable<Double> range(double min, double maxExclusive)
range with a step of 1.0
Client
class: | RangeClient.java | ![]() |
package: | range.client | |
source folder: | src/main/java |
The code:
for (int i : Iterables.range(4, 12)) { System.out.println(i); } System.out.println(); for (double d : Iterables.range(3.0, 7.1, 0.25)) { System.out.println(d); }
produces the output:
4 5 6 7 8 9 10 11 3.0 3.25 3.5 3.75 4.0 4.25 4.5 4.75 5.0 5.25 5.5 5.75 6.0 6.25 6.5 6.75 7.0
Test
class: | IterableRangeTestSuite.java | ![]() |
package: | range.warmup | |
source folder: | src/test/java |