急啊!!后天就要考试了,大家来帮帮忙吧,在线等 请问如何使用BufferedWriter 和 FileWriter类实现,将JList列表框中的所有信息存于一个指定目录的文件中,格式不变,我对着还不熟悉, 请高手指教 解决方案 » 免费领取超大流量手机卡,每月29元包185G流量+100分钟通话, 中国电信官方发货 ListModel listModel = jList.getModel();BufferedWriter bw = new BufferedWriter( new FileWriter( fileName ) );for( int i = 0, n = listModel.getSize(); i < n; i++ ) { String s = listModel.getElementAt( i ).toString(); bw.write( s, 0, s.length() ); bw.newLine();}bw.close(); JList jl = new JList();//已知JList;String fileName = "";try{FileWriter fw = new FileWriterI(new File(fileName));BufferedWriter bw = new BufferedWriter(fw);Object [] objs = jl.getSelectedValues();for(int i=0;i<objs.length;i++){String line = objs[i].toString()+"\r\n";bw.write(line,0,line.length());}bw.close();}catch(Exception e){} jdbc查询多条记录问题 如何设置TextField回车键事件为单击确认按钮 设计一个百亿计算器的思路? html 中的select标签提交到之后的取值???? 求助 初学者问题,为啥不执行这条语句呢? 误删.setting文件夹 jbuilder ,javamail 问题 applet中定时出现随机的黑点: java vs £define 100分只求一个装箱单分配思路,高手们赐教! windows编程和JAVA编程哪个更该先学?
BufferedWriter bw = new BufferedWriter( new FileWriter( fileName ) );for( int i = 0, n = listModel.getSize(); i < n; i++ ) {
String s = listModel.getElementAt( i ).toString();
bw.write( s, 0, s.length() );
bw.newLine();
}
bw.close();
String fileName = "";
try{
FileWriter fw = new FileWriterI(new File(fileName));
BufferedWriter bw = new BufferedWriter(fw);
Object [] objs = jl.getSelectedValues();
for(int i=0;i<objs.length;i++){
String line = objs[i].toString()+"\r\n";
bw.write(line,0,line.length());
}
bw.close();
}catch(Exception e){}