PackageDec2016; Public classQues1207 { Public Static voidMain (string[] args) {NewTest (); NewTest (1); NewTest ("1"); System.out.println ("Number of instances:" +test.getnumofinstances ()); } } classtest{Private Static intnumofinstances = 0;//How many instances are logged{numofinstances++;//constructing code blocks, calculating the number of instances } PublicTest () {} PublicTest (intnum) { } PublicTest (String str) { This();//call the parameterless constructor } //returns the number of instances created Public Static intgetnumofinstances () {returnnumofinstances; } }
Today's question:
Can the main program run the output correctly? (Click on the "Java Daily question" 20161207 "to view the 20161206 problem resolution)
Title Originally published in the public number, Pinterest: "Java daily problem" 20161207, "Java daily" 20161207
"Java Daily question" 20161207