Output: { {"a", 2}, {"a", 4}, {"abc", 3}, {"bc", 5} } Input: { {"efg", 1}, {"gfg", 1}, {"cba", 1}, {"zaa", 1} } Output: { {"cba", 1}, {"efg", 1}, {"gfg", 1}, {"zaa", 1} } Java importjava.io.*;importjava.util.*;classPairimplementsComparabl...
// Override compareTo method to sort LinkedHashMap keys // in ascending order publicintcompareTo(Studentstu) { returnthis.name.compareTo(stu.name); } } classGFG{ publicstaticvoidmain(String[]args) { // New LinkedHashMap LinkedHashMap<Student,Integer>map =newLinkedHashMap<>(); // Adding...
// Java Program to Update Elements in a List// Importing utility classesimportjava.util.*;// Main classclassGFG{// Main driver methodpublicstaticvoidmain(String args[]){// Creating an object of List interfaceList<String> al =newArrayList<>();// Adding elements to object of List classal....
// Implementation ofReadWriteLockin Javaimportjava.io.*;importjava.util.ArrayList;importjava.util.List;importjava.util.concurrent.locks.Lock;importjava.util.concurrent.locks.ReadWriteLock;importjava.util.concurrent.locks.ReentrantReadWriteLock;classGFG<O>{privatefinalReadWriteLockreadWriteLock =newReentran...