Java IdentityHashMap size() methodThe size() method of the Java IdentityHashMap class is used to calculate the no of key-value pairs present in the calling IdentityHashMap. SyntaxReturnAn integer denoting the number of key-value pairs present in the IdentityHashMap. Example 1Test it NowOutput: 6 {Java=1, the=3, language=6, programming=5, best=4, is=2} Example 2Test it NowOutput: 4 {1=Student@70dea4e, 3=Student@5c647e05, 2=Student@33909752, 4=Student@55f96302}
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