本文实例为大家分享了java实现查找替换功能的具体代码，供大家参考，具体内容如下
查找
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if (searchtxt.gettext().equals( "" )){ joptionpane.showmessagedialog( null , "查找内容不能为空！" ); } 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; } } |
查找下一处
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nexttemp = newendposition; if (filechoose.focus == 1 ){ strall = filechoose.tp1.gettext(); filechoose.tp1.select(nexttemp, strall.length()); //选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对应字符在tp1中的位置 newendposition = newstartposition + searchtxt.gettext().length(); filechoose.tp1.select(newstartposition, newendposition); //找到文本，选择文本 } else if (filechoose.focus == 2 ){ strall = filechoose.tp2.gettext(); filechoose.tp2.select(nexttemp, strall.length()); //选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对应字符在tp1中的位置 newendposition = newstartposition + searchtxt.gettext().length(); filechoose.tp2.select(newstartposition, newendposition); //找到文本，选择文本 } |
替换
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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; } |
替换下一处
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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内容，希望对大家的学习有所帮助，也希望大家多多支持。