@@ -0,0 +1,411 @@
+package study.hard.javalib.nativelib;%0A%0Aimport org.junit.Test;%0A%0Apublic class LanguageTest %7B%0A%0A%09@Test%0A%09public void testStaticVariable() %7B%0A%09%09ClassThatHasStaticVariable a1 = new ClassThatHasStaticVariable();%0A%09%09ClassThatHasStaticVariable a2 = new ClassThatHasStaticVariable();%0A%09%7D%0A%0A%7D%0A%0Aclass ClassThatHasStaticVariable %7B%0A%09static int count = 0;%0A%0A%09ClassThatHasStaticVariable() %7B%0A%09%09count++;%0A%09%09System.out.print(count);%0A%09%7D%0A%7D

Add the codes to test Java language.