The Callable is a task that returns a result and may throw an exception. The Callable is a functional interface whose functional method is call().
Callable interface represents a thread that can return a value. It is very much similar to Runnable interface except that it can return a value. Callable interface can be used to compute status or results that can be returned to invoking thread. For example: Let’s say you want to perform...
publicinterfaceFuture<V>{booleancancel(booleanmayInterruptIfRunning);booleanisCancelled();booleanisDone();Vget()throwsInterruptedException,ExecutionException;Vget(longtimeout,TimeUnitunit)throwsInterruptedException,ExecutionException,TimeoutException;} 2. Java Callable Future Example In this example, we are execut...
Skip navigation links Java SE 17 & JDK 17 Overview Module Package Class Use Tree Preview New Deprecated Index Help Summary: Nested | Field | Constr | Method Detail: Field | Constr | Method SEARCH: Module java.base Package java.util.concurrent Interface Callable<V> Type Parameters: V - the ...
[Android.Runtime.Register("java/util/concurrent/Callable", "", "Java.Util.Concurrent.ICallableInvoker")] [Java.Interop.JavaTypeParameters(new System.String[] { "V" })] public interface ICallable : Android.Runtime.IJavaObject, IDisposable, Java.Interop.IJavaPeerableAttributes...
Tip: What if we want to override some of the methods of Java Future interface, for example overridingget()method to timeout after some default time rather than waiting indefinitely, in this caseJava FutureTaskclass comes handy that is the base implementation of Future interface. Check outto lea...
java.util.concurrent Interface Callable<V> Type Parameters: V- the result type of methodcall All Known Subinterfaces: DocumentationTool.DocumentationTask,JavaCompiler.CompilationTask Functional Interface: This is a functional interface and can therefore be used as the assignment target for a lambda expres...
java.lang.Runnable吧,它是一个接口,在它里面只声明了一个run()方法:1 2 3 public interface Runnable { public abstract void run(); }由于run()方法返回值为void类型,所以在执行完任务之后无法返回任何结果。Callable位于java.util.concurrent包下,它也是一个接口,在它里面也只声明了一个方法,只不过这个方法...
public interface Runnable { public abstract void run(); } Java代码 public interface Future<V> { boolean cancel(boolean mayInterruptIfRunning); /** * Waits if necessary for the computation to complete, and then * retrieves its result.
Call Stored Procedure Using Callable Statement in JDBCJDBCJavaMySQLMySQLi Database You can call the SQL stored procedures using the CallableStatement interface. A Callable statement can have input parameters, output parameters, or both.You can create an object of the CallableStatement (interface) using...