hello world for C

#include <stdio.h>

int main() {
    printf("hello, world\n");
    return 0;
}

hello world for JAVA

public class HelloWorld {
    public static void main(String[] args) {
        System.out.println("Hello, World!");
    }
}

hello world for nlang

nlang: 中文
plang：java
say：编写程序，输出"hello world"字符到控制台