英文:
Is there a way to initialize multiple variables in Java?
问题
例如，如果我有以下代码：
public class Practice {private int num0;private int num1;private int num2;private int num3;public Practice() {num0 = 0 + 0 + 0 + 0;num1 = 1 + 1 + 1 + 1;num2 = 2 + 2 + 2 + 2;num3 = 3 + 3 + 3 + 3;}public static void main(String[] args) {}}
是否有办法使用循环或其他方式使初始化过程变得更简洁？比如说如果我有40个num，是否需要把这整个过程都重复一遍？
英文:
For example, if I have the code:
public class Practice {private int num0;private int num1;private int num2;private int num3;public Practice() {num0 = 0 + 0 + 0 + 0;num1 = 1 + 1 + 1 + 1;num2 = 2 + 2 + 2 + 2;num3 = 3 + 3 + 3 + 3;}public static void main(String[] args) {}}
Is there any way to use a loop or some other way to make the initialization less lengthy? Like if I had 40 nums, would I need to type this whole thing out?
答案1
得分: 7
int[] num = new int[40];
for(int i=0; i<num.length; i++) {
num[i] = i*4;
}
英文:
That is precisely the use-case of arrays.
int[] num = new int[40];for(int i=0; i<num.length; i++) {num[i] = i*4;}
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