Question

编写一个实现Hello World简单显示功能的Makefile文件

Answer 1

makefile文件内容
.PHONY :output
output:
@echo 'Hello World'
然后在命令行输入 make output

Answer 2

import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.io.PrintWriter;

public class Test {
public static void main(String[] args) throws IOException{
File f = new File("C:\\1234.txt");
f.createNewFile();
PrintWriter out = new PrintWriter(f);
out.write("hello world");
out.flush();
}

}