常用集合

Java 集合 API12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667686970package test;import java.util.*;public class CollectionTest { public static void testStack(){ Deque<Integer> stack = new ArrayDeque<>(); // push stack.push(1); // top Integer a = stack.peek(); // pop stack.pop(); } public static void testQueue(){ Queue<Integer> q = new LinkedList<>(); ...