在Java中,如何在方法中使用标签?
此示例显示如何在循环中遇到break
或continue
语句时跳转到特定标签。
package com.yiibai;
public class UseOfLabel {
public static void main(String[] args) {
String strSearch = "This is the string in which you have to search for a substring.";
String substring = "substring";
boolean found = false;
int max = strSearch.length() - substring.length();
testlbl: for (int i = 0; i <= max; i++) {
int length = substring.length();
int j = i;
int k = 0;
while (length-- != 0) {
if (strSearch.charAt(j++) != substring.charAt(k++)) {
continue testlbl;
}
}
found = true;
break testlbl;
}
if (found) {
System.out.println("Found the substring .");
} else {
System.out.println("did not find the substing in the string.");
}
}
}
执行上面示例代码,得到以下结果 -
Found the substring .