[TOC]
You can get free coins from the following sites. all sites has been tested by me.
You can get free Polygon for mumbai testnet, ETH for Rinkeby, Kovan test net. How to use
[TOC]
You can get free coins from the following sites. all sites has been tested by me.
You can get free Polygon for mumbai testnet, ETH for Rinkeby, Kovan test net. How to use
public class ArrayList implements List { | |
private Object[] elements; // 数组 | |
private int length; // 数据的长度 | |
private int size; // 当前元素的个数 | |
public ArrayList() { | |
elements = new Object[10]; // 创建一个长度为10的数组 | |
this.length = 10; | |
} |
abstract class Animal { | |
protected boolean isMammal; | |
protected boolean isCarnivorous; | |
public Animal(boolean isMammal, boolean isCarnivorous) { | |
this.isMammal = isMammal; | |
this.isCarnivorous = isCarnivorous; | |
} | |
public boolean getIsMammal() { |
//链接:https://www.zhihu.com/question/47045239/answer/105086885 | |
public abstract class BaseActivity extends FragmentActivity implements | |
OnClickListener { | |
/** 是否沉浸状态栏 **/ | |
private boolean isSetStatusBar = true; | |
/** 是否允许全屏 **/ | |
private boolean mAllowFullScreen = true; | |
/** 是否禁止旋转屏幕 **/ | |
private boolean isAllowScreenRoate = false; |
//链接:https://www.zhihu.com/question/47045239/answer/105086885 | |
public abstract class BaseActivity extends FragmentActivity implements | |
OnClickListener { | |
/** 是否沉浸状态栏 **/ | |
private boolean isSetStatusBar = true; | |
/** 是否允许全屏 **/ | |
private boolean mAllowFullScreen = true; | |
/** 是否禁止旋转屏幕 **/ | |
private boolean isAllowScreenRoate = false; |
//链接:https://www.zhihu.com/question/47045239/answer/105086885 | |
public abstract class BaseFragment extends Fragment implements OnClickListener { | |
private boolean isDebug; | |
private String APP_NAME; | |
protected final String TAG = this.getClass().getSimpleName(); | |
private View mContextView = null; | |
@Override | |
public void onCreate(Bundle savedInstanceState) { | |
super.onCreate(savedInstanceState); |
//输入一个整数数组,实现一个函数来调整该数组中数字的顺序,使得所有的奇数位于数组的前半部分, | |
//所有的偶数位于数组的后半部分,并保证奇数和奇数,偶数和偶数之间的相对位置不变。 | |
import java.util.ArrayList; | |
public class Even_Odd_Array { | |
static int[] array = {5, 6, 7, 8}; | |
public static class Solution { | |
public static void reOrderArray(int[] array) { |
package Callback; | |
public interface Callback { | |
void event(String result); | |
} | |
public class Callback_Test { |
public class LinkedList_reverse { | |
public static void main(String[] args) { | |
Node head = new Node(0); | |
Node node1 = new Node(1); | |
Node node2 = new Node(2); | |
Node node3 = new Node(3); | |
head.setNext(node1); | |
node1.setNext(node2); | |
node2.setNext(node3); |
import java.util.Stack; | |
import java.util.Queue; | |
import java.util.LinkedList; | |
public class TreeMap { | |
class BST<E extends Comparable<E>> { | |
private class Node { | |
public E e; | |
public Node left, right; |