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Java ConcurrentHashMap forEach() Method
The forEach() method of ConcurrentHashMap class performs the given action for each key, value pair.
Syntax
Parameter
parallelismThreshold – the (estimated) number of elements needed for this operation to be executed in parallel
action – the action
transformer – a function which return transformation.
Returns
true if the value was replaced
Throws
NullPointerException.
Example 1
Output:
New HashMap after remove : {k1=1000, k2=200, k3=300, k4=400} k: k1, v: 1000 k: k2, v: 200 k: k3, v: 300 k: k4, v: 400
Example 2
Output:
mymap2 :{1=101, 2=102, 3=103} mymap :{AA=Java, BB=angular, CC=JavaScript} comparing mymap and mymap2 :false k: AA, v: Java k: BB, v: angular k: CC, v: JavaScript
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