java实现查找替换功能_Java教程

java实现查找替换功能

2021-07-27 11:35cat_pp Java教程

这篇文章主要为大家详细介绍了java实现查找替换功能，具有一定的参考价值，感兴趣的小伙伴们可以参考一下

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

				?

									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

				?

									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

				?

									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());

									    }