Java Arrys的用法

package cn.feng.method.arrys;

import java.util.Arrays;

public class ArraysText {

/**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
int[] array1 = { 7, 8, 3, 2, 12, 6, 3, 5, 4 };
int binarySearch = Arrays.binarySearch(array1, 12);// 二分法查找角标
System.out.print(binarySearch + "-");
Arrays.sort(array1);// 排序从小到达
int[] array2 = Arrays.copyOf(array1, array1.length);// 拷贝数组
int[] arr3 = new int[9];
Arrays.fill(arr3, 3);// 填充数据

String[] arrstr = { "a", "b", "java", "spring", "hadoop", "lucene" };
for (int i = 0; i < array1.length; i++) {

System.out.print(array1[i] + "-");
System.out.print(Arrays.equals(array1, array2));
System.out.print(arr3[i] + "-");
System.out.print(array2[i] + "\r\n");
}
}

}