[backcolor=rgba(128, 128, 128, 0.0470588)]/*多行注释的快捷键：Ctrl+shift+/快速格式化代码快捷键：Ctrl+shift+f自动导入一个包：Ctrl+shift+o*/[backcolor=rgba(128, 128, 128, 0.0470588)]package test_1;[backcolor=rgba(128, 128, 128, 0.0470588)]public[backcolor=rgba(128, 128, 128, 0.0470588)] [backcolor=rgba(128, 128, 128, 0.0470588)]class[backcolor=rgba(128, 128, 128, 0.0470588)] Day_2 {    [backcolor=rgba(128, 128, 128, 0.0470588)]public[backcolor=rgba(128, 128, 128, 0.0470588)] [backcolor=rgba(128, 128, 128, 0.0470588)]static[backcolor=rgba(128, 128, 128, 0.0470588)] [backcolor=rgba(128, 128, 128, 0.0470588)]void[backcolor=rgba(128, 128, 128, 0.0470588)] [backcolor=rgba(128, 128, 128, 0.0470588)]main[backcolor=rgba(128, 128, 128, 0.0470588)](String args[]) {        [backcolor=rgba(128, 128, 128, 0.0470588)]//一个九九乘法表的实现[backcolor=rgba(128, 128, 128, 0.0470588)]        [backcolor=rgba(128, 128, 128, 0.0470588)]int[backcolor=rgba(128, 128, 128, 0.0470588)] c = [backcolor=rgba(128, 128, 128, 0.0470588)]0[backcolor=rgba(128, 128, 128, 0.0470588)];        [backcolor=rgba(128, 128, 128, 0.0470588)]for[backcolor=rgba(128, 128, 128, 0.0470588)] ([backcolor=rgba(128, 128, 128, 0.0470588)]int[backcolor=rgba(128, 128, 128, 0.0470588)] a = [backcolor=rgba(128, 128, 128, 0.0470588)]1[backcolor=rgba(128, 128, 128, 0.0470588)]; a <= [backcolor=rgba(128, 128, 128, 0.0470588)]9[backcolor=rgba(128, 128, 128, 0.0470588)]; a++) {            [backcolor=rgba(128, 128, 128, 0.0470588)]for[backcolor=rgba(128, 128, 128, 0.0470588)] ([backcolor=rgba(128, 128, 128, 0.0470588)]int[backcolor=rgba(128, 128, 128, 0.0470588)] b = [backcolor=rgba(128, 128, 128, 0.0470588)]1[backcolor=rgba(128, 128, 128, 0.0470588)]; b <= a; b++) {                c = a * b;                System.[backcolor=rgba(128, 128, 128, 0.0470588)]out[backcolor=rgba(128, 128, 128, 0.0470588)].printf([backcolor=rgba(128, 128, 128, 0.0470588)]"%d*%d=%d  "[backcolor=rgba(128, 128, 128, 0.0470588)],b,a,c);            }            System.[backcolor=rgba(128, 128, 128, 0.0470588)]out[backcolor=rgba(128, 128, 128, 0.0470588)].println();        }        System.[backcolor=rgba(128, 128, 128, 0.0470588)]out[backcolor=rgba(128, 128, 128, 0.0470588)].println([backcolor=rgba(128, 128, 128, 0.0470588)]"-------------------我是华丽的分割线--------------------------"[backcolor=rgba(128, 128, 128, 0.0470588)]);        [backcolor=rgba(128, 128, 128, 0.0470588)]// 遍历数组的方法[backcolor=rgba(128, 128, 128, 0.0470588)]        [backcolor=rgba(128, 128, 128, 0.0470588)]// 方法1：[backcolor=rgba(128, 128, 128, 0.0470588)]        [backcolor=rgba(128, 128, 128, 0.0470588)]int[backcolor=rgba(128, 128, 128, 0.0470588)] arr[] = [backcolor=rgba(128, 128, 128, 0.0470588)]new[backcolor=rgba(128, 128, 128, 0.0470588)] [backcolor=rgba(128, 128, 128, 0.0470588)]int[backcolor=rgba(128, 128, 128, 0.0470588)][[backcolor=rgba(128, 128, 128, 0.0470588)]3[backcolor=rgba(128, 128, 128, 0.0470588)]];        [backcolor=rgba(128, 128, 128, 0.0470588)]for[backcolor=rgba(128, 128, 128, 0.0470588)] ([backcolor=rgba(128, 128, 128, 0.0470588)]int[backcolor=rgba(128, 128, 128, 0.0470588)] a = [backcolor=rgba(128, 128, 128, 0.0470588)]0[backcolor=rgba(128, 128, 128, 0.0470588)]; a < arr.length; a++) {            System.[backcolor=rgba(128, 128, 128, 0.0470588)]out[backcolor=rgba(128, 128, 128, 0.0470588)].println(arr[a]);        }        System.[backcolor=rgba(128, 128, 128, 0.0470588)]out[backcolor=rgba(128, 128, 128, 0.0470588)].println([backcolor=rgba(128, 128, 128, 0.0470588)]"-------------------我是华丽的分割线--------------------------"[backcolor=rgba(128, 128, 128, 0.0470588)]);        [backcolor=rgba(128, 128, 128, 0.0470588)]//方法2：[backcolor=rgba(128, 128, 128, 0.0470588)]        [backcolor=rgba(128, 128, 128, 0.0470588)]for[backcolor=rgba(128, 128, 128, 0.0470588)] ([backcolor=rgba(128, 128, 128, 0.0470588)]int[backcolor=rgba(128, 128, 128, 0.0470588)] a : arr) {            System.[backcolor=rgba(128, 128, 128, 0.0470588)]out[backcolor=rgba(128, 128, 128, 0.0470588)].println(a);        }        System.[backcolor=rgba(128, 128, 128, 0.0470588)]out[backcolor=rgba(128, 128, 128, 0.0470588)].println([backcolor=rgba(128, 128, 128, 0.0470588)]"-------------------我是华丽的分割线--------------------------"[backcolor=rgba(128, 128, 128, 0.0470588)]);        [backcolor=rgba(128, 128, 128, 0.0470588)]//二维数组的遍历[backcolor=rgba(128, 128, 128, 0.0470588)]        [backcolor=rgba(128, 128, 128, 0.0470588)]int[backcolor=rgba(128, 128, 128, 0.0470588)] arr2[][]=[backcolor=rgba(128, 128, 128, 0.0470588)]new[backcolor=rgba(128, 128, 128, 0.0470588)] [backcolor=rgba(128, 128, 128, 0.0470588)]int[backcolor=rgba(128, 128, 128, 0.0470588)][][]{            {[backcolor=rgba(128, 128, 128, 0.0470588)]1[backcolor=rgba(128, 128, 128, 0.0470588)],[backcolor=rgba(128, 128, 128, 0.0470588)]2[backcolor=rgba(128, 128, 128, 0.0470588)],[backcolor=rgba(128, 128, 128, 0.0470588)]3[backcolor=rgba(128, 128, 128, 0.0470588)]},            {[backcolor=rgba(128, 128, 128, 0.0470588)]4[backcolor=rgba(128, 128, 128, 0.0470588)],[backcolor=rgba(128, 128, 128, 0.0470588)]5[backcolor=rgba(128, 128, 128, 0.0470588)],[backcolor=rgba(128, 128, 128, 0.0470588)]6[backcolor=rgba(128, 128, 128, 0.0470588)]},            {[backcolor=rgba(128, 128, 128, 0.0470588)]7[backcolor=rgba(128, 128, 128, 0.0470588)],[backcolor=rgba(128, 128, 128, 0.0470588)]8[backcolor=rgba(128, 128, 128, 0.0470588)],[backcolor=rgba(128, 128, 128, 0.0470588)]9[backcolor=rgba(128, 128, 128, 0.0470588)]}        };        [backcolor=rgba(128, 128, 128, 0.0470588)]for[backcolor=rgba(128, 128, 128, 0.0470588)]([backcolor=rgba(128, 128, 128, 0.0470588)]int[backcolor=rgba(128, 128, 128, 0.0470588)] i=[backcolor=rgba(128, 128, 128, 0.0470588)]0[backcolor=rgba(128, 128, 128, 0.0470588)];i<arr2.length;i++){            [backcolor=rgba(128, 128, 128, 0.0470588)]for[backcolor=rgba(128, 128, 128, 0.0470588)]([backcolor=rgba(128, 128, 128, 0.0470588)]int[backcolor=rgba(128, 128, 128, 0.0470588)] j=[backcolor=rgba(128, 128, 128, 0.0470588)]0[backcolor=rgba(128, 128, 128, 0.0470588)];j<arr2[[backcolor=rgba(128, 128, 128, 0.0470588)]0[backcolor=rgba(128, 128, 128, 0.0470588)]].length;j++){                System.[backcolor=rgba(128, 128, 128, 0.0470588)]out[backcolor=rgba(128, 128, 128, 0.0470588)].print(arr2[j]+[backcolor=rgba(128, 128, 128, 0.0470588)]" "[backcolor=rgba(128, 128, 128, 0.0470588)]);                           }            System.[backcolor=rgba(128, 128, 128, 0.0470588)]out[backcolor=rgba(128, 128, 128, 0.0470588)].println();        }    }}

[backcolor=rgba(128, 128, 128, 0.0470588)]/*多行注释的快捷键：Ctrl+shift+/快速格式化代码快捷键：Ctrl+shift+f自动导入一个包：Ctrl+shift+o*/[backcolor=rgba(128, 128, 128, 0.0470588)]package test_1;[backcolor=rgba(128, 128, 128, 0.0470588)]public[backcolor=rgba(128, 128, 128, 0.0470588)] [backcolor=rgba(128, 128, 128, 0.0470588)]class[backcolor=rgba(128, 128, 128, 0.0470588)] Day_2 {    [backcolor=rgba(128, 128, 128, 0.0470588)]public[backcolor=rgba(128, 128, 128, 0.0470588)] [backcolor=rgba(128, 128, 128, 0.0470588)]static[backcolor=rgba(128, 128, 128, 0.0470588)] [backcolor=rgba(128, 128, 128, 0.0470588)]void[backcolor=rgba(128, 128, 128, 0.0470588)] [backcolor=rgba(128, 128, 128, 0.0470588)]main[backcolor=rgba(128, 128, 128, 0.0470588)](String args[]) {        [backcolor=rgba(128, 128, 128, 0.0470588)]//一个九九乘法表的实现[backcolor=rgba(128, 128, 128, 0.0470588)]        [backcolor=rgba(128, 128, 128, 0.0470588)]int[backcolor=rgba(128, 128, 128, 0.0470588)] c = [backcolor=rgba(128, 128, 128, 0.0470588)]0[backcolor=rgba(128, 128, 128, 0.0470588)];        [backcolor=rgba(128, 128, 128, 0.0470588)]for[backcolor=rgba(128, 128, 128, 0.0470588)] ([backcolor=rgba(128, 128, 128, 0.0470588)]int[backcolor=rgba(128, 128, 128, 0.0470588)] a = [backcolor=rgba(128, 128, 128, 0.0470588)]1[backcolor=rgba(128, 128, 128, 0.0470588)]; a <= [backcolor=rgba(128, 128, 128, 0.0470588)]9[backcolor=rgba(128, 128, 128, 0.0470588)]; a++) {            [backcolor=rgba(128, 128, 128, 0.0470588)]for[backcolor=rgba(128, 128, 128, 0.0470588)] ([backcolor=rgba(128, 128, 128, 0.0470588)]int[backcolor=rgba(128, 128, 128, 0.0470588)] b = [backcolor=rgba(128, 128, 128, 0.0470588)]1[backcolor=rgba(128, 128, 128, 0.0470588)]; b <= a; b++) {                c = a * b;                System.[backcolor=rgba(128, 128, 128, 0.0470588)]out[backcolor=rgba(128, 128, 128, 0.0470588)].printf([backcolor=rgba(128, 128, 128, 0.0470588)]"%d*%d=%d  "[backcolor=rgba(128, 128, 128, 0.0470588)],b,a,c);            }            System.[backcolor=rgba(128, 128, 128, 0.0470588)]out[backcolor=rgba(128, 128, 128, 0.0470588)].println();        }        System.[backcolor=rgba(128, 128, 128, 0.0470588)]out[backcolor=rgba(128, 128, 128, 0.0470588)].println([backcolor=rgba(128, 128, 128, 0.0470588)]"-------------------我是华丽的分割线--------------------------"[backcolor=rgba(128, 128, 128, 0.0470588)]);        [backcolor=rgba(128, 128, 128, 0.0470588)]// 遍历数组的方法[backcolor=rgba(128, 128, 128, 0.0470588)]        [backcolor=rgba(128, 128, 128, 0.0470588)]// 方法1：[backcolor=rgba(128, 128, 128, 0.0470588)]        [backcolor=rgba(128, 128, 128, 0.0470588)]int[backcolor=rgba(128, 128, 128, 0.0470588)] arr[] = [backcolor=rgba(128, 128, 128, 0.0470588)]new[backcolor=rgba(128, 128, 128, 0.0470588)] [backcolor=rgba(128, 128, 128, 0.0470588)]int[backcolor=rgba(128, 128, 128, 0.0470588)][[backcolor=rgba(128, 128, 128, 0.0470588)]3[backcolor=rgba(128, 128, 128, 0.0470588)]];        [backcolor=rgba(128, 128, 128, 0.0470588)]for[backcolor=rgba(128, 128, 128, 0.0470588)] ([backcolor=rgba(128, 128, 128, 0.0470588)]int[backcolor=rgba(128, 128, 128, 0.0470588)] a = [backcolor=rgba(128, 128, 128, 0.0470588)]0[backcolor=rgba(128, 128, 128, 0.0470588)]; a < arr.length; a++) {            System.[backcolor=rgba(128, 128, 128, 0.0470588)]out[backcolor=rgba(128, 128, 128, 0.0470588)].println(arr[a]);        }        System.[backcolor=rgba(128, 128, 128, 0.0470588)]out[backcolor=rgba(128, 128, 128, 0.0470588)].println([backcolor=rgba(128, 128, 128, 0.0470588)]"-------------------我是华丽的分割线--------------------------"[backcolor=rgba(128, 128, 128, 0.0470588)]);        [backcolor=rgba(128, 128, 128, 0.0470588)]//方法2：[backcolor=rgba(128, 128, 128, 0.0470588)]        [backcolor=rgba(128, 128, 128, 0.0470588)]for[backcolor=rgba(128, 128, 128, 0.0470588)] ([backcolor=rgba(128, 128, 128, 0.0470588)]int[backcolor=rgba(128, 128, 128, 0.0470588)] a : arr) {            System.[backcolor=rgba(128, 128, 128, 0.0470588)]out[backcolor=rgba(128, 128, 128, 0.0470588)].println(a);        }        System.[backcolor=rgba(128, 128, 128, 0.0470588)]out[backcolor=rgba(128, 128, 128, 0.0470588)].println([backcolor=rgba(128, 128, 128, 0.0470588)]"-------------------我是华丽的分割线--------------------------"[backcolor=rgba(128, 128, 128, 0.0470588)]);        [backcolor=rgba(128, 128, 128, 0.0470588)]//二维数组的遍历[backcolor=rgba(128, 128, 128, 0.0470588)]        [backcolor=rgba(128, 128, 128, 0.0470588)]int[backcolor=rgba(128, 128, 128, 0.0470588)] arr2[][]=[backcolor=rgba(128, 128, 128, 0.0470588)]new[backcolor=rgba(128, 128, 128, 0.0470588)] [backcolor=rgba(128, 128, 128, 0.0470588)]int[backcolor=rgba(128, 128, 128, 0.0470588)][][]{            {[backcolor=rgba(128, 128, 128, 0.0470588)]1[backcolor=rgba(128, 128, 128, 0.0470588)],[backcolor=rgba(128, 128, 128, 0.0470588)]2[backcolor=rgba(128, 128, 128, 0.0470588)],[backcolor=rgba(128, 128, 128, 0.0470588)]3[backcolor=rgba(128, 128, 128, 0.0470588)]},            {[backcolor=rgba(128, 128, 128, 0.0470588)]4[backcolor=rgba(128, 128, 128, 0.0470588)],[backcolor=rgba(128, 128, 128, 0.0470588)]5[backcolor=rgba(128, 128, 128, 0.0470588)],[backcolor=rgba(128, 128, 128, 0.0470588)]6[backcolor=rgba(128, 128, 128, 0.0470588)]},            {[backcolor=rgba(128, 128, 128, 0.0470588)]7[backcolor=rgba(128, 128, 128, 0.0470588)],[backcolor=rgba(128, 128, 128, 0.0470588)]8[backcolor=rgba(128, 128, 128, 0.0470588)],[backcolor=rgba(128, 128, 128, 0.0470588)]9[backcolor=rgba(128, 128, 128, 0.0470588)]}        };        [backcolor=rgba(128, 128, 128, 0.0470588)]for[backcolor=rgba(128, 128, 128, 0.0470588)]([backcolor=rgba(128, 128, 128, 0.0470588)]int[backcolor=rgba(128, 128, 128, 0.0470588)] i=[backcolor=rgba(128, 128, 128, 0.0470588)]0[backcolor=rgba(128, 128, 128, 0.0470588)];i<arr2.length;i++){            [backcolor=rgba(128, 128, 128, 0.0470588)]for[backcolor=rgba(128, 128, 128, 0.0470588)]([backcolor=rgba(128, 128, 128, 0.0470588)]int[backcolor=rgba(128, 128, 128, 0.0470588)] j=[backcolor=rgba(128, 128, 128, 0.0470588)]0[backcolor=rgba(128, 128, 128, 0.0470588)];j<arr2[[backcolor=rgba(128, 128, 128, 0.0470588)]0[backcolor=rgba(128, 128, 128, 0.0470588)]].length;j++){                System.[backcolor=rgba(128, 128, 128, 0.0470588)]out[backcolor=rgba(128, 128, 128, 0.0470588)].print(arr2[j]+[backcolor=rgba(128, 128, 128, 0.0470588)]" "[backcolor=rgba(128, 128, 128, 0.0470588)]);                           }            System.[backcolor=rgba(128, 128, 128, 0.0470588)]out[backcolor=rgba(128, 128, 128, 0.0470588)].println();        }    }}