Java如何在方法中使用標籤?

在Java中，如何在方法中使用標籤?

此範例顯示如何在迴圈中遇到break或continue語句時跳轉到特定標籤。

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.");
        }
    }
}

執行上面範例程式碼，得到以下結果 -

Found the substring .