2.1. With Java 9 Since Java 9, we can use aList<E>.of(E… elements)static factory method to create an immutable list: @Test(expected = UnsupportedOperationException.class)publicfinalvoidgivenUsingTheJava9_whenUnmodifiableListIsCreated_thenNotModifiable(){finalList<String> list =newArrayList<>(...
final class Immutable { private final int a; private final String s; private final Chirag ss; public Immutable (int a1, String s1, Chirag ss1){ this.a = a1; this.s = s1; this.ss = ss1; } public Integer geta() { return a; } public String gets() { return s; } public String...
Another way that we can construct an immutable set is by using Guava’sImmutableSetclass. It copies the existing data into a new immutable instance. As a result, the data insideImmutableSetwon’t change when we alter the originalSet. Like the core Java implementation, any attempt to modify ...
public class BankAccount{ [...] private void validate(long balance) { if (balance < 0) { throw new IllegalArgumentException("balance must not be negative:"+ balance); } } }Example 2In a typical class, this validate() method would be called anytime a user’s balance is changed. If ...
In String class, it has the following code: privateinthash;//this is used to cache hash code. 3. Facilitating the Use of Other Objects To make this concrete, consider the following program: HashSet<String>set=newHashSet<String>();set.add(newString("a"));set.add(newString("b"));set...
As you can observe, there are quite a few considerations, and the code is verbose. Although a lot of code I have generated is through my IDE, it is still verbose. Java x 1 publicfinalclassProduct{ 2 3 privatefinallongid; ...
public sealed class ImmutableList<T> : System.Collections.Generic.ICollection<T>, System.Collections.Generic.IEnumerable<T>, System.Collections.Generic.IList<T>, System.Collections.Generic.IReadOnlyCollection<T>, System.Collections.Generic.IReadOnlyList<T>, System.Collections.IList, System.Collections....
publicfinalclassStringimplementsjava.io.Serializable,Comparable<String>,CharSequence {/** The value is used for character storage. */privatefinalchar value[];/** The offset is the first index of the storage that is used. */privatefinalint offset;/** The count is the number of characters in...
表示不可变列表,它是可由索引访问的对象强类型列表。 NuGet 包:System.Collections.Immutable(有关不可变集合以及如何安装)C# 复制 public sealed class ImmutableList<T> : System.Collections.Generic.ICollection<T>, System.Collections.Generic.IEnumerable<T>, System.Collections.Generic.IList<T>, System....
time.Register("java/util/AbstractMap$SimpleImmutableEntry", DoNotGenerateAcw=true)] [Java.Interop.JavaTypeParameters(new System.String[] { "K", "V" })] public class AbstractMap.SimpleImmutableEntry : Java.Lang.Object, IDisposable, Java.Interop.IJavaPeerable, Java.IO.ISerializable, Java.Util....