Java-Functions

4.1k+ posts

Last Updated: 07 April 2025

When we work with Java's HashMap, one common problem occurs that is dealing with missing keys. If we try to fetch a value for a key that doe ...read more

Java

Java-Collections

Java - util package

Java-Functions

Java-HashMap

Picked

Map get() method in Java with Examples

Last Updated: 07 May 2023

The get() method of Map interface in Java is used to retrieve or fetch the value mapped by a particular key mentioned in the parameter. It r ...read more

List get() method in Java with Examples

Last Updated: 29 November 2024

The get() method of List interface in Java is used to get the element present in this list at a given specific index. Example:[GFGTABS] ...read more

Similar Topics

Java

10.5k+ articles

Java - util package

1.5k+ articles

Java-Collections

1.1k+ articles

Java-time package

570+ articles

Java-lang package

390+ articles

java-basics

310+ articles

Java-text package

240+ articles

Java-IO package

240+ articles

Java-NIO package

220+ articles

Java-Time-Chrono package

160+ articles

List size() method in Java with Examples

Last Updated: 29 November 2024

The size() method of the List interface in Java is used to get the number of elements in this list. That is, the list size() method returns ...read more

HashMap containsKey() Method in Java

Last Updated: 04 January 2025

The java.util.HashMap.containsKey() method is used to check whether a particular key is being mapped into the HashMap or not. It takes the k ...read more

HashMap get() Method in Java

Last Updated: 04 January 2025

The java.util.HashMap.get() method of HashMap class is used to retrieve or fetch the value mapped by a particular key mentioned in the param ...read more

Java String trim() Method

Last Updated: 27 November 2024

The trim() method of the String class in Java is used to remove leading and trailing whitespace from a string. The Unicode value of the spac ...read more

Java

Java-Strings

Java-Functions

Java String format() Method

Last Updated: 02 May 2025

In Java, the String.format() method allows us to create a formatted string using a specified format string and arguments. We can concatenate ...read more

Stream anyMatch() in Java with examples

Last Updated: 06 December 2018

Stream anyMatch(Predicate predicate) returns whether any elements of this stream match the provided predicate. It may not evaluate the predi ...read more

Java-Stream interface

Stream filter() in Java with examples

Last Updated: 09 July 2024

Stream filter(Predicate predicate) returns a stream consisting of the elements of this stream that match the given predicate. This is an int ...read more

Java-Stream interface

Stream map() in Java with examples

Last Updated: 04 January 2025

Stream map(Function mapper)returns a stream consisting of the results of applying the given function to the elements of this stream.Stream m ...read more

Java-Stream interface

Java String substring() Method

Last Updated: 11 April 2025

In Java,the substring() methodofthe String classreturns a substring from the given string. This method is most useful when you deal with tex...read more

ArrayList to Array Conversion in Java : toArray() Methods

Last Updated: 04 January 2025

Following methods can be used for converting ArrayList to Array:Method 1: Using Object[] toArray() methodSyntax: public Object[] toArray() I...read more

Java String split() Method

Last Updated: 11 April 2025

The String split() method in Java is used to split a string into an array of substrings based on matches of the given regular expression or ...read more

java-regular-expression

PriorityQueue in Java

Last Updated: 15 April 2025

The PriorityQueue class in Java is part of the java.util package. It implements a priority heap-based queue that processes elements based on...read more

1 2 3 4 5 6 7 8 >>

1 2 3 4 5 6 >>

1 2 3 4 >>

Log in

Create Account