java实现查找替换功能
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
if(searchTxt.getText().equals("")){
JOptionPane.showMessageDialog(null,"查找内容不能为空！");
}elseif(!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;
}elseif(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
}elseif(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;
}elseif(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());
}elseif(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毛票票。