java realizes the function of finding and replacing

In this article, we share the specific code of java to achieve the function of finding and replacing, for your reference, the specific contents are as follows

Find

if(searchTxt.getText().equals("")){
          JOptionPane.showMessageDialog(null, " Find content cannot be empty! ");
        }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;
          }
     }

Find the next 1 place

nextTemp = newEndPosition;
        if(fileChoose.focus == 1){
          strAll = fileChoose.tp1.getText();
          fileChoose.tp1.select(nextTemp, strAll.length());// Select all unsearched strings 
          nextStr = fileChoose.tp1.getSelectedText();
          newStartPosition = nextStr.indexOf(searchTxt.getText()) + nextTemp;// Find the corresponding character in an unfound string in the tp1 Position in 
          newEndPosition = newStartPosition + searchTxt.getText().length();
          fileChoose.tp1.select(newStartPosition, newEndPosition);// Find the text and select the text 
        }else if(fileChoose.focus == 2){
          strAll = fileChoose.tp2.getText();
          fileChoose.tp2.select(nextTemp, strAll.length());// Select all unsearched strings 
          nextStr = fileChoose.tp2.getSelectedText();
          newStartPosition = nextStr.indexOf(searchTxt.getText()) + nextTemp;// Find the corresponding character in an unfound string in the tp1 Position in 
          newEndPosition = newStartPosition + searchTxt.getText().length();
          fileChoose.tp2.select(newStartPosition, newEndPosition);// Find the text and select the text 
    }

Replace

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;
   }

Replace the next 1

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());
    }