Day16-数组的使用及多维数组

package array;

public class Demo02 {
    public static void main(String[] args) {
        int[] arrays = {1,2,3,4,5};
        //打印所有数组元素
        for (int i=0;imax){
                max = arrays[i];
            }
        }
        System.out.println("max="+max);
    }
}

package array;

public class Demo03 {
    public static void main(String[] args) {
        int[] arrays = {1,2,3,4,5};
        int[] reverse = reverse(arrays);
        printArray(reverse);
    }
    // 反转数组
    public static int[] reverse(int[] arrays){
        int[] result = new int[arrays.length];
        for (int i = 0,j = result.length-1; i < arrays.length ; i++,j--) {
            result[j] = arrays[i];
        }
        return result;
    }
    //打印数组元素
    public static void printArray(int[] arrays){
        for (int i = 0; i < arrays.length; i++) {
            System.out.print(arrays[i]+" ");
        }
    }
}

定义

int a[][] = new int [2][5];

package array;

public class Demo04 {
    public static void main(String[] args) {
        int[][] array = {{1,2},{2,3},{3,4},{4,5}};
        
        //打印数组元素
        for (int i = 0; i < array.length ; i++) {
            for (int j = 0; j					
										


					

						
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