sleep vs wait
sleep wait what is it? Causes the currently executing thread to sleep (temporarily cease execution) for the specified time Causes[…]
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Category: Core Java
Methods in Thread Class
Let us first look into some of the important static methods in Thread Class 1. public static native void sleep(long[…]
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wait, notify and notifyAll
Object class contains the following three methods for inter-thread communication: wait notify notifyAll wait() throws InterruptedException:It causes the current thread to[…]
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Threads in Java: Great Insights
What are Threads in Java ? Threads in Java are lightweight units of execution within a program that can run[…]
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implements Runnable vs extends Thread
There are two ways to run tasks in separate threads. One is by extending Thread class and another one is by implementing Runnable interface. What is[…]
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Runnable vs Callable
Runnable Callable- Introduced in Java 1.5 Definition public interface Runnable { public abstract void run(); }To use Runnable, we need to override[…]
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Java Initializers
In java, we have three types of initializers: 1. Static Initializer:can be used to set the value of any static[…]
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equals and hashCode in Java
equals method is used to check the equality of two objects based on it’s contents. equals versus == If two[…]
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LinkedHashMap in Java
LinkedHashMap implements Map and extends HashMap.Please visit HashMap for understanding the internal working of HashMap before you read further so that it becomes[…]
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ClassNotFoundException vs NoClassDefFoundError
ClassNotFoundException NoClassDefFoundError Exception or Error? It is of type java.lang.Exception.It is a Checked Exception. It is of type java.lang.Error. When[…]
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