JAVA 数组问题答:public class PrintArray { public static void main(String args[]) { // 用二位数组 int arr[][] = {{1,2,3,4},{5,6,7,8},{9,10,11,12},{13,14,15,16}};System.out.println("行 列 数");for(int i = 0; i < 4; i++) { for(int j = 0; j < 4; j++) {...
java对象数组的合并问题答:public class Counter { public static void main(String[] args) throws Exception { Object[] obj = { "a1,b1,c1,100", "a1,b2,c1,300", "a1,b1,c1,50","a1,b1,c2,100", "a1,b2,c1,100" };Object[] result = new Object[obj.length];int size = 0;for (Object o : obj)...