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java语言桃心源代码 java编程一个心形图案

IT技术mycat

java源代码如何用java源代码是用来关联jar中的编译代码的 。
应用场景：通常在打开eclipse中的jar的时候，发现class文件不能被打开，此时出现下面的界面 ， 此时就需要通过“Attach Source” ， 之后找到对应的java源代码来实现代码关联 ， 即可正常的显示class类中的内容 。
备注：如果此处ava源代码指的是源代码文件（“.java”），是用来进行代码维护和二次开发的必备东西 。
java源代码分析 实在是不太会 ， 求高手教教我 。package test2;
【java语言桃心源代码 java编程一个心形图案】import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.HashMap;
import java.util.Map;
import java.util.Set;
public class JavaCodeAnalyzer {
public static void analyze(File file) throws IOException{
//FileOutputStream fos = new FileOutputStream("F;"+File.separator+"result.txt");
if(!(file.getName().endsWith(".txt")||file.getName().endsWith(".java"))){
System.out.println("输入的分析文件格式不对！");
}
InputStream is= new FileInputStream(file);
BufferedReader br= new BufferedReader(new InputStreamReader(is));
String temp;
int count=0;
int countSpace=0;
int countCode=0;
int countDesc=0;
MapString, Integer map = getKeyWords();
while((temp=br.readLine())!=null){
countKeys(temp, map);
count++;
if(temp.trim().equals("")){
countSpace++;
}else if(temp.trim().startsWith("/*")||temp.trim().startsWith("//")){
countDesc++;
}else{
countCode++;
}
}
System.out.printf("代码行数:"+countCode+"占总行数的%4.2f\n",(double)countCode/count);
System.out.printf("空行数:"+countSpace+"占总行数的%4.2f\n",(double)countSpace/count);
System.out.printf("注释行数:"+countDesc+"占总行数的%4.2f\n",(double)countDesc/count);
System.out.println("总行数："+count);
System.out.println("出现最多的5个关键字是：");
System.out.println("");
System.out.println("");
System.out.println("");
System.out.println("");
System.out.println("");
}
public static void main(String[] args) {
getKeyWords();
File file = new File("F://Test.java");
try {
analyze(file);
} catch (IOException e) {
// TODO 自动生成 catch 块
e.printStackTrace();
}
}
public static MapString,Integer getKeyWords(){
MapString,Integer map = new HashMapString, Integer();
String[]keywords = {"abstract","assert","boolean","break","byte","case","catch","char","class","continue","default","do","double","else","enum","extends","final","finally","float","for","if","implements","import","instanceof","int","interface","long","native","new","package","private","protected","public","return","strictfp","short","static","super","switch","synchronized","this","throw","throws","transient","try","void","volatile","while","goto","const"};
for(String s:keywords){
map.put(s, 0);
}
return map;
}
public static void countKeys(String s,MapString,Integer map){
SetString keys = map.keySet();
for(String ss:keys){
if(s.indexOf(ss)!=-1){
map.put(ss, map.get(ss)+1);
}
}
}
}
上班没啥时间了，还有点没写完，你在想想 。
什么是java源代码 怎么查看java语言桃心源代码你说的java源代码是指编译成的class文件前的java文件 。
当java语言桃心源代码我们运行.java文件时java语言桃心源代码，它会被系统编译成.class文件java语言桃心源代码，例如Test.java编译之后就是Test.class，

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