1.Arrays类
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Arrays.deepToString()与Arrays.toString()的区别:
Arrays.deepToString()主要用于打印多维数组,
Arrays.toString()主要用于打印一维数组,如果用于多维数组,将会打印其地址。
import java.util.Arrays;
public class test {
public static void main(String[] args) {
int a[] = {1, 2, 3};
System.out.println(Arrays.toString(a));
int b[][] = {{1, 2, 3}, {4, 5, 6}};
System.out.println(Arrays.toString(b));
System.out.println(Arrays.deepToString(b));
}
}