本文實例為大家分享了java實現查找替換功能的具體代碼，供大家參考，具體內容如下
查找
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if(searchtxt.gettext().equals("")){ joptionpane.showmessagedialog(null, "查找內容不能為空！"); }else if(!searchtxt.gettext().equals("")){ //searchdialog.dispose(); if(filechoose.focus == 1){ filechoose.tp1.requestfocus(true); str = filechoose.tp1.gettext(); startposition = str.indexof(searchtxt.gettext()); endposition = startposition + searchtxt.gettext().length(); filechoose.tp1.select(startposition, endposition); newendposition = endposition; }else if(filechoose.focus == 2){ filechoose.tp2.requestfocus(true); str = filechoose.tp2.gettext(); startposition = str.indexof(searchtxt.gettext()); endposition = startposition + searchtxt.gettext().length(); filechoose.tp2.select(startposition, endposition); newendposition = endposition; } } |
查找下一處
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nexttemp = newendposition; if(filechoose.focus == 1){ strall = filechoose.tp1.gettext(); filechoose.tp1.select(nexttemp, strall.length());//選中所有未查找的字符串 nextstr = filechoose.tp1.getselectedtext(); newstartposition = nextstr.indexof(searchtxt.gettext()) + nexttemp;//在未查找的字符串中查找對應字符在tp1中的位置 newendposition = newstartposition + searchtxt.gettext().length(); filechoose.tp1.select(newstartposition, newendposition);//找到文本，選擇文本 }else if(filechoose.focus == 2){ strall = filechoose.tp2.gettext(); filechoose.tp2.select(nexttemp, strall.length());//選中所有未查找的字符串 nextstr = filechoose.tp2.getselectedtext(); newstartposition = nextstr.indexof(searchtxt.gettext()) + nexttemp;//在未查找的字符串中查找對應字符在tp1中的位置 newendposition = newstartposition + searchtxt.gettext().length(); filechoose.tp2.select(newstartposition, newendposition);//找到文本，選擇文本 } |
替換
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if(filechoose.focus == 1){ filechoose.tp1.requestfocus(true); str = filechoose.tp1.gettext(); startposition = str.indexof(searchtxt.gettext()); endposition = startposition + searchtxt.gettext().length(); filechoose.tp1.replaceselection(replacetxt.gettext()); newendposition = endposition; }else if(filechoose.focus == 2){ filechoose.tp2.requestfocus(true); str = filechoose.tp2.gettext(); startposition = str.indexof(searchtxt.gettext()); endposition = startposition + searchtxt.gettext().length(); filechoose.tp2.replaceselection(replacetxt.gettext()); newendposition = endposition; } |
替換下一處
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if(filechoose.focus == 1){ filechoose.tp1.requestfocus(true); nexttemp = newendposition; strall = filechoose.tp1.gettext();//////////////////////////////// filechoose.tp1.select(nexttemp, strall.length());///////////////////////////// nextstr = filechoose.tp1.getselectedtext(); newstartposition = nextstr.indexof(searchtxt.gettext()) + nexttemp; newendposition = newstartposition + searchtxt.gettext().length(); filechoose.tp1.select(newstartposition, newendposition); filechoose.tp1.replaceselection(replacetxt.gettext()); }else if(filechoose.focus == 2){ filechoose.tp2.requestfocus(true); nexttemp = newendposition; strall = filechoose.tp2.gettext(); filechoose.tp2.select(nexttemp,strall.length()); nextstr = filechoose.tp2.getselectedtext(); newstartposition = nextstr.indexof(searchtxt.gettext()) + nexttemp; newendposition =newstartposition + searchtxt.gettext().length(); filechoose.tp2.select(newstartposition, newendposition); filechoose.tp2.replaceselection(replacetxt.gettext()); } |
以上就是本文的全部內容，希望對大家的學習有所幫助，也希望大家多多支持服務器之家。
