Java-Arrays类-fill()方法详解

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Java-Arrays类-fill()方法详解

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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

代码示例：

```java
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}
        
    }
}

参考链接：
[https://www.cnblogs.com/xiaozuoliunian/p/7784008.html](https://www.cnblogs.com/xiaozuoliunian/p/7784008.html)