cmd javac java javaSE javaEE web android javaME Path class classpath public private static void main System out print Demo extends interface abstract implements DOS AVA_HOME path hello world JDK,JRE,JVM Version author byte short int long char String float double type boolean true false binary octal hex % ++ -- += -= >>> ,>> ,<< true false int a = 1; int b = 2; int c = 0; c = (a>b)?10:20; & | && || count sum Salary Random Scanner Import if else switch case break continue return default While Loop if true int a = 1; int b = 2; if(a<b){ System.out.println("OK");} switch byte long String for while continue break Max Min Function Method Result Compare Temp Array Null pointer Excep tion Error Thread Lang language index Outof bound length sort Arrays.sort(arr) select selectSort bubble bullbeSort change Swap nullpointerException ArrayIndexOutOfBoundsException Half Search Mid Number util utility Transition trans Object Class member Class method Class variable Constructor Package Car Color Red Blue Black White Run Person People Age Name Speak Set Reset Get Code Country University College Private Show Sleep Single Instance Tool Data Develop eclipse application perspective this Person p = new Person(); Person.class static class Student { private Student(){} private static Student s = new Student(); public static Student getInstance() { return s; } } class Teacher { private Teacher(){} private static Teacher t; public static Teacher getInstance() { if(t==null) { t = new Teacher(); } return t; } } Extends Phone Call Study Work Eclipse Location encoding Properties extends (abstract) private static final abstract Super Final finally finalized Abstract Interface Imple ments Mouse Bonus Inner Protect Eclipse File Folder View Show view (interface) public static final int x = 20; public static final int x = 20; public abstract void show(); public abstract void show(); public static final interface { public abstract void smoking(); } SmokeStudent extends Student implements Smoking SmokeStudent ss = new SmokeStudent(); ss.eat(); ss.study(); ss.smoking(); Teacher teach eat interface Smoking { public abstract void smoking(); } SmokeTeacher extends Teacher implements Smoking SmokeTeacher st = new SmokeTeacher(); st.eat(); st.teach(); st.smoking(); Person Animal Cat Dog method(Animal a){a.eat();} Fu f = new Zi(); Animal a = new Cat(); a.eat(); a.catchMouse(); Cat c = (Cat)a; c.eat(); c.catchMouse(); Animal a = new Dog(); Cat c = (Cat)a; Dog d = (Dog)a; Object toString(),equals() boolean equals(Object obj) String toString() int hashCode Class<?> getClass() Object protected void finalize() inal,finally,finalize toString() public String toString() { return "HelloWorld"; return "name:"+name+",age"+age; } Object equals public boolean equals(Object obj) Equals Memory OutOfMemoryError Heap Space Java heap space Java Throw Throws Finally Message Try Catch Close Open Add Prelect eclipse Refresh Edit Project Constructor override implements concrete class main Directory Throwable ClassCastException Runtime untime Exception Current Arithmetic eclipse Preference rename template package protected import private OK static,private,final abstract jar jar -cf haha.jar packa static Synchro nized Runnable Inter rupted Ticket Bank tank flag dead lock unlock eclipse console font syntax Overload Override Overloaded Resource Notify Input Output bounded Buffer boundedbuffer Signal Condition Producer Consumer wait sleep Substring Trim Append Add Insert Delete remove replace update Create Builder StringBuffer StringBuilder char character int integer parse parseInt Retain reverse collection Remove clear Iterator list ArrayList HasPrevious HasNext Split Element NoSuchElementException linked Contains Set Comparator style eclipse bracket keyword excluding math ceil() floor() round() pow(a,b) Execute process Notepad destroy Separator Integer int Generic vector value Calendar Day Week Month Year format ParseException stack trace printStackTrace by order byOrderline readLine() stream flush filter Absolute hidden Suffix level store accept sequence HashMap Hashtable List Map Enumeration merge access Un supported Unsupported Encoding Exception compare comparable field button frame action event visible menu area item Scroll pane ScrollPane Content Context choose dialog Relative Init Initialization perform Port Viewport pressed display dispose Operator operation host address HostAddress receive send client Server log register upload Download Task Browse Browser connection layout Terminate Instantiation Instance declared Access Accessible invoke board MainBoard card Network card match matcher pattern Regex title untitled Charset Encoding Row s Cols Top center target document table span User password Radio Checkbox image none option Form Height Width S sh border alert Onclick reset submit Stylesheet Background decoration Hover Active Visit ed Link Letter Focus blank Bottom Botton Pad ding Solid Dash ed Groove Dotted Position Var undefined global interval timeout confirm node tag sibling Request Response prototype overflow collapse Generate Modified
把这些导到金山里面练习几遍
我敲了一遍，感觉手好累，大小写切换的太频繁了，我的速度是每分钟148 |
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