1. 数组元素的赋值（杨辉三角、回形数等）
2. 求数组型数组中元素的最大值、最小值、平均值、总和等
3. 数组的复制、反转、查找（线性查找、二分法查找）
4. 数组元素的排序算法

杨辉三角

package project01;public class AreaTest {public static void main(String[] args) {//声明并初始化二维数组int[][] yanghui = new int[10][];//给数组的元素赋值for (int i =0;i<yanghui.length;i++){yanghui[i] = new int[i+1];//每行首末元素赋值yanghui[i][0] = 1;yanghui[i][i] = 1;//每行非首末元素赋值if (i>1){for (int j =1;j<yanghui[i].length-1;j++){yanghui[i][j] = yanghui[i-1][j-1] + yanghui[i-1][j];}}}//遍历二维数组for (int i =0;i<yanghui.length;i++){for (int j =0;j<yanghui[i].length;j++){System.out.print(yanghui[i][j]+" ");}System.out.println();}}
}