kodingwindow@kw:~$ javac KW.java kodingwindow@kw:~$ java KW
[25622348989, 25622348990, 25622348991, 25622348992]
[James Moore, Donald Taylor, Edward Parkar, Ryan Bakshi]
kodingwindow@kw:~$
Java LinkedHashMap: replace() method
KW.java
importjava.util.LinkedHashMap;classKW{publicstaticvoidmain(String[]args){//LinkedHashMap class implements the Map interfaceLinkedHashMap<Long,String>lhm=newLinkedHashMap<>();lhm.put(25622348989L,"James Moore");lhm.put(25622348990L,"Donald Taylor");lhm.put(25622348991L,"Edward Parkar");lhm.put(25622348992L,"Ryan Bakshi");System.out.println(lhm);lhm.replace(25622348991L,"Edward D Parkar");lhm.replace(25622348992L,"Ryan Bakshi","Ryan S Bakshi");System.out.println(lhm);}}
importjava.util.LinkedHashMap;classKW{publicstaticvoidmain(String[]args){//LinkedHashMap class implements the Map interfaceLinkedHashMap<Long,String>lhm=newLinkedHashMap<>();lhm.put(25622348989L,"James Moore");lhm.put(25622348990L,"Donald Taylor");lhm.put(25622348991L,"Edward Parkar");lhm.put(25622348992L,"Ryan Bakshi");System.out.println(lhm.keySet());lhm.remove(25622348991L);System.out.println(lhm.keySet());lhm.clear();if(lhm.isEmpty()){System.out.println("LinkedHashMap is empty now");}}}
Output
kodingwindow@kw:~$ javac KW.java kodingwindow@kw:~$ java KW
[25622348989, 25622348990, 25622348991, 25622348992]
[25622348989, 25622348990, 25622348992]
LinkedHashMap is empty now
kodingwindow@kw:~$
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