fill()方法使用参考
声明举例:
public static void fill(int[] a, form, to, int var)
参数:
a--数组
form--替换开始位置(包括)
to--替换结束位置(不包括)
var--要替换的值
使用参考实例:
public class Test {
public static void main(String[] args) {
int[] a = new int[]{1,2,3,4,5,6};
System.out.println(Arrays.toString(a)); //{1,2,3,4,5,6}
Arrays.fill(a, 0);
System.out.println(Arrays.toString(a)); //{0,0,0,0,0,0}
int[] b = new int[]{1,2,3,4,5,6};
Arrays.fill(b, 2, 4, 0);
System.out.println(Arrays.toString(b)); //{1,2,0,0,5,6}
Boolean[] c = {true,false};
System.out.println(Arrays.toString(c)); //{true,false}
Arrays.fill(c, false);
System.out.println(Arrays.toString(c)); //{false,false}
Arrays.fill(c, 0, 1, true);
System.out.println(Arrays.toString(c)); //{true,false}
String[] d = {"a","b","c","d","e","f"};
System.out.println(Arrays.toString(d)); //{a,b,c,d,e,f}
Arrays.fill(d, 1, 2, "HelloWorld");
System.out.println(Arrays.toString(d)); //{a,HelloWorld,c,d,e,f}
}
}