Os:windows7 x64
Jdk:jdk-8u131-windows-x64
Ide:eclipse Oxygen Release (4.7.0)
Code:
/* Static code block (only), construct code block, construct method */class Test {static{//static code block SYSTEM.OUT.PRINTLN ("Code Execution of static code block, execute Once");} {System.out.println ("code execution in the construction code block");} Public Test () {System.out.println ("parameterless constructor Execution");} public Test (int num) {System.out.println ("with parameter constructor execution");}} Class Demo {public static void main (string[] agrs) {Test T1 = new Test ();//Call the parameterless constructor System.out.println ("------------------ -"); Test t2 = new test (1);//Call a parameter constructor}}
Results:
Java is good, worth learning.
Learning resources: Itcast Video Library. If you have public resources, can share to me, with your resources to learn also can.
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JavaSE8 block and constructor execution order static block of code (only), construct code blocks--construction method