Java 使用 for 循环反转字符串
声明：本页面是StackOverFlow热门问题的中英对照翻译，遵循CC BY-SA 4.0协议，如果您需要使用它，必须同样遵循CC BY-SA许可，注明原文地址和作者信息，同时你必须将它归于原作者（不是我）：StackOverFlow
原文地址: http://stackoverflow.com/questions/18111020/
Warning: these are provided under cc-by-sa 4.0 license. You are free to use/share it, But you must attribute it to the original authors (not me):
StackOverFlow
Reversing a String using a for loop
提问by Alvin Varghese
I just want to reverse a inputted String by using for loop. I have tried the following code below. [ its full of mistake i think.. cause i dont know how to convert things to array or to string in this problem ]. So anyone please help me the coding here...
我只想通过使用 for 循环来反转输入的字符串。我在下面尝试了以下代码。[我认为它充满了错误......因为我不知道如何在这个问题中将事物转换为数组或字符串]。所以任何人都请帮我在这里编码......
public class Main extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
TextView tv = (TextView) findViewById(R.id.textView1);
EditText input_string =(EditText) findViewById(R.id.editText1);
final String orig = input_string.getText().toString();
Button rev = (Button) findViewById(R.id.button1);
rev.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View arg0) {
int limit = orig.length();
for(int i=limit;i<=limit;i--)
{
String[] neww = orig[i].;
}
tv.setText(neww);
}}) }}
回答by Zoltorn
Something like this is what you're looking for.
像这样的东西就是你要找的。
String x = "A string";
String y = "";
for(int i = x.length()-1; i >= 0; i--){
y=y + x.charAt(i);
}
Your new string will be stored in the variable y.
您的新字符串将存储在变量 y 中。
