[英]How convert table into string?
我想将表转换为一个字符串:
int y [] = {30, 34, 45, 57, 77, 89, 100, 111, 123, 145};
必须是这样的:
String y = 30, 34, 45, 57, 77, 89, 100, 111, 123, 145;
远码:
public class GraphLoading extends Activity {
public static int [] y;
int Test;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.loading);
int y [] = {30, 34, 45, 57, 77, 89, 100, 111, 123, 145};
}
public static int[] x = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 };
}
我必须将该Tablo转换为字符串,然后才能将其保存到SD卡中。
请您粘贴完整的代码吗? (我是业余爱好者)
您可以依靠Arrays.toString
的实现:
String y1 = Arrays.toString(y).replaceAll("\\[|\\]", "");
否则,您可以遍历int
数组并使用StringBuilder
附加每个元素。
尝试这个:
int[] a = { 1, 2, 3, 4, 5 };
String str = "";
for (int i : a) {
str += i + ",";
}
str = str.substring(0, str.length() - 1);
System.out.println(str);
该代码未经测试,但是应该可以解决:
final StringBuilder builder = new StringBuilder();
String comma = "";
for (int i : y) {
builder.append(comma);
builder.append(i);
comma = ", ";
}
尝试这个:
String str = Arrays.toString(y);
/* Will return Array as a string as [30, 34, 45, ....]
* Now use java String library functions */
str = (str.replaceAll("}", ""));
str = (str.replaceAll("{", ""));
System.out.println(str);
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