day01_程凯.zip

public class ConstantDemo { public static void main(String[] args) { System.out.println("HelloWorld"); System.out.println("黑马程序员"); System.out.println(666); System.out.println(-88); System.out.println(13.14); System.out.println(-5.21); System.out.println('A'); System.out.println('0'); System.out.println('我'); System.out.println('我'); System.out.println(true); System.out.println(false); } }