英文:
If line.startsWith("something") don't write this line nor the next line
问题
我试图读取并编辑一个文件。
假设我有一个文件，内容如下：
a
b
c
d
我有如下代码：
if inputLine.startsWith("b"){
// 寻找要放入这里的代码
}
那么我该如何避免将 b 和 c 写入新文件中呢？
所以新文件的内容看起来会是这样的：
a
d
希望这样表达清楚。
我已经尝试使用 continue。然而，它不会写入 b，但仍会写入 c。
我还在寻求相同操作的相反方式的帮助，基本上是这样说：
if inputLine.startsWith("b"){
删除 a 和 b
}
这样我就会得到：
c
d
谢谢 
编辑：
当尝试使用 continue 时，我尝试在 while 循环中这样做：
if inputLine.startsWith("b"){
while(inputLine != "d"){
continue;
}
}
英文:
I'm trying to read a file and edit it.
Let's say I have a file that says:
a
b
c
d
and I have code saying
if inputLine.startsWith("b"){
looking for code to go in here
}
how do I then go about not writing neither b and c into the new file.
so the new file would look like this:
a
d
I hope that makes senses.
I've tried using continue. However, it doesn't write b but it still writes c.
I am also looking for help with doing the same thing but the other way round, basically saying:
if inputLine.startsWith("b"){
delete a && b
}
so I will be left with:
c
d
Thank you
edit:
When trying continue I tried doing this is a while loop like so:
if inputLine.startsWith("b"){
while(inputLine != "d"){
continue;
}
}
答案1
得分: 1
boolean skipnextLine = false;
// 假设您有一个循环，遍历每一行
for (...) {
if (skipnextLine) {
skipnextLine = false;
continue; // 忽略当前行
}
if (inputLine.startsWith("b")) {
skipnextLine = true; // 跳过下一行
continue; // 忽略当前行
}
// 在这里执行您想要处理的未被跳过的行的操作
}
英文:
boolean skipnextLine = false;
// Assuming you have some loop that loops through each line
for(...) {
if(skipnextLine) {
skipnextLine = false;
continue; // Ignore current line
}
if(inputLine.startsWith("b")) {
skipnextLine = true; // Skip next line
continue; // Ignore current line
}
// Do here what you want to do with the lines that are not skipped
}
答案2
得分: 0
看看这是否有效...
我们正在做的是创建一个整数以确定要跳过多少行，代码大部分都是自我解释的。
int linesToSkip = 0;
if (inputLine.startsWith("b")) {
linesToSkip = 2;
}
if (linesToSkip > 0) {
linesToSkip--;
continue;
}
// 在这里处理未被跳过的行
英文:
see if this works...
what were doing is were creating an integer to know how many lines to skip, the code is mostly self explainitory
int linesToSkip = 0;
if(inputLine.startsWith("b")){
linesToSkip = 2;
}
if(linesToSkip > 0){
linesToSkip--;
continue;
}
//do what you want here with the lines not skipped
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