This is how to remove all the key-value mappings from TreeMap and make it empty. We are using clear() method of TreeMap class to perform… [Read More]
Remove Key-value mapping from TreeMap example
In this tutorial we are gonna see how to remove a Key-value mapping from TreeMap. We are using remove(Object key) method of TreeMap class to… [Read More]
Super keyword in java with example
The super keyword refers to the objects of immediate parent class. Before learning super keyword you must have the knowledge of inheritance in Java so… [Read More]
Final Keyword In Java – Final variable, Method and Class
In this tutorial we will learn the usage of final keyword. The final keyword can be used for variables, methods and classes. We will cover… [Read More]
Java program for bubble sort in Ascending & descending order
In this tutorial we are gonna see how to do sorting in ascending & descending order using Bubble sort algorithm. Bubble sort program for sorting… [Read More]
Java program to convert decimal to binary
There are three following ways to convert Decimal number to binary number: 1) Using toBinaryString() method of Integer class. 2) Do conversion by writing your… [Read More]
Java program to get IP address
In this example we are gonna see how to get IP address of a System. The steps are as follows: 1) Get the local host… [Read More]
Java Program to get input from user
In this tutorial we are gonna see how to accept input from user. We are using Scanner class to get the input. In the below… [Read More]
Difference between List and Set in Java
List and Set both are interfaces. They both extends Collection interface. In this post we are discussing the differences between List and Set interfaces in… [Read More]
How to Compress a File in GZIP Format
The below code would compress a specified file to GZip format. In the below example we have a text file in B drive under “Java”… [Read More]
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