我有非常不寻常的要求,我希望我可以请你提供专业的反馈。我对以下一段代码有一点了解。
代码:
Class TestTablic {
public static void main(String[] args) {
int [] indeks = new int[4];
indeks[0] = 1;
indeks[1] = 3;
indeks[2] = 0;
indeks[3] = 2;
String[] islands = new String[4];
Islands[0] = "Bermudy";
Islands[1] = "Fiji";
Islands[2] = "Azory";
Islands[3] = "Kozumel";
int y = 0;
int ref;
while (y < 4) {
ref = indeks[y];
System.out.print("Island = ");
System.out.println(Islands[ref]);
y = y + 1;
}
}
}
我很感激有人可以一步一步地将它分解给我,看看我是否理解正确!
(我对int ref
部分感到困惑,是否有必要?我从我用来学习java的书中拿出了以下代码,但是他们在那里放了很多令人困惑的行...)
干杯!
答案 0 :(得分:2)
ref
在循环体中定义为与ref = indeks[y];
对应。鉴于先前对indeks
[1,3,0,2]的定义,它将输出islands
(注意小写“i”)
Fiji
Kozumel
Bermudy
Azory
所以,把它们放在一起
public static void main(String[] args) {
int[] indeks = new int[4];
indeks[0] = 1;
indeks[1] = 3;
indeks[2] = 0;
indeks[3] = 2;
String[] islands = new String[4];
islands[0] = "Bermudy";
islands[1] = "Fiji";
islands[2] = "Azory";
islands[3] = "Kozumel";
int y = 0;
int ref;
while (y < 4) {
ref = indeks[y];
System.out.print("Island = ");
System.out.println(islands[ref]);
y = y + 1;
}
}
哪些输出(当我运行时) -
Island = Fiji
Island = Kozumel
Island = Bermudy
Island = Azory