摘要:
public class SparseArray { public static void display(int arr[][]) { for (int[] i : arr) { for (int j : i) { System.out.printf("%s\t", j); } System.ou 阅读全文
摘要:
Lambda表达式 interface Body { String detailed(String head); } public class Sample { @Test public void test_1(){ Body b= h -> h + " No Parens!"; System.ou 阅读全文