JAVA幼儿园课堂——第一课基础内容

//sout  //快捷方式
System.out.println("Hello World Java");

    //循环方式
    int i=0;
    while (i<=100)
    {
        System.out.println(Integer.toString(i));
        i++;
    }


    do {

        System.out.println(Integer.toString(i));
        i++;
    }while (i<=100);

    for(i=0;i<=100;i++)
    {
        System.out.println(Integer.toString(i));
        i++;
    }

ary.fori  //正序
ary.forr  //倒序

 String[] ary = new String[]{"1","2","3","4","6","5","9"};
 for( String b : ary)
 {
     System.out.println(b);
 }