数组的三种定义方式
1.int[] arr = new int[3];
arr[0] = 1;
arr[1] = 2;
arr[2] = 3;
2.int[] arr = {1,2,3};(可不写下标)
3.int[] arr = new int[]{1,2,3};
数组的遍历
for(int i = 0; i<arr.length;i++) {
System.out.println(arr[i]+"\t");
}
数组倒置
![](https://img.haomeiwen.com/i8634662/a53300a3859294ee.png)
数组的冒泡排序
![](https://img.haomeiwen.com/i8634662/eb40cd74e2d248cc.png)
二维数组
![](https://img.haomeiwen.com/i8634662/c699145f55cc22be.png)
1.int[] arr = new int[3];
arr[0] = 1;
arr[1] = 2;
arr[2] = 3;
2.int[] arr = {1,2,3};(可不写下标)
3.int[] arr = new int[]{1,2,3};
for(int i = 0; i<arr.length;i++) {
System.out.println(arr[i]+"\t");
}
本文标题:数组
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