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+package jk;%0D%0A%0D%0Apublic class HelloWorld %7B%0D%0A%09public static void main(String%5B%5D args) %7B%0D%0A%09%09System.out.println(%22HelloWorld%22);%0D%0A%09%09System.out.println(%22Welcome to Jenkins%22);%0D%0A%09%09// TestClass t = new TestClass();%0D%0A%09%09// System.out.println(t.value.charAt(0));%0D%0A%09%7D%0D%0A%7D%0D%0A//%0D%0A// class TestClass %7B%0D%0A// %09String value;%0D%0A// %7D%0D%0A

Add demo file01