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java實(shí)現(xiàn)查找替換功能
本文實(shí)例為大家分享了java實(shí)現(xiàn)查找替換功能的具體代碼，供大家參考，具體內(nèi)容如下
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查找
if(searchTxt.getText().equals("")){
JOptionPane.showMessageDialog(null, "查找內(nèi)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
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(duì)應(yīng)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(duì)應(yīng)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
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
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?jī)?nèi)容，希望對(duì)大家的學(xué)習(xí)有所幫助，也希望大家多多支持創(chuàng)新互聯(lián)。
標(biāo)題名稱：java實(shí)現(xiàn)查找替換功能
標(biāo)題鏈接：http://www.dlmjj.cn/article/jcghhj.html
