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11.1.1 异常分类
try{
....
}catch(FileNotFoundException | UnknownHostException){
...
}
try{
...
}catch(Exception e){
Throwable se = new ServetException("database error: ");
se.initCause(e);
throw se;
}
try(Resources res = ){
work with this res
}
FileInputStream fs=null;
try{
fs = new FileInputStream("D:\test.txt");
fs.xxxxx
}
finally{
if(fs != null) fs.close();
}
try(FileInputStream fs= new FileInputStream("D:\test.txt")){
fs.xxxx
}
Throwable t = new Throwable();
StackTraceElement[] frames = t.getStackTrace();
for(StackTraceElement frame : frames){
//xxxxx
}
Map<Thread, StackTraceElement[]> map = Thread.getAllStackTrace();
for(Thread t: map.keys()){
StackTraceElement frames = map.get(t);
analyze frame
}
String getFileName();
int getLineNumber();
String getClassName();
String getMethodName();
boolean isNativeMethod();
String toString();
public void readStuff(Sting fileName) throw s IOException{
InputStream is = new FileInputStream(fileName);
//xxxx
}
Java系列:《Java核心技术 卷一》学习笔记,cchapter11 异常
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原文地址:http://www.cnblogs.com/strinkbug/p/4990501.html