Java學習 查詢兩個字串中的最大子串
阿新 • • 發佈:2019-01-23
public static String getMaxSubString(String str1,String str2) { String max = null,min = null; if(str1.length()>str2.length()) //先區分出大串和小串 { max = str1; min = str2; } else { max = str2; min = str1; } for(int x = 0;x<min.length();x++) //外迴圈進行共同串的長度進行從大到小的遍歷 { for(int a = 0,b = min.length()-x;b!=min.length()+1;a++,b++) //內部迴圈進行同一長度子串的查詢遍歷 { String maxSub = min.substring(a, b); if(str1.contains(maxSub)) { return maxSub; } } } return null; }
public static void main(String[] args)
{
String str = "cr7goalx3wowcr7cr9ohcr7goalx1wowcr7goalx2cr7goalx2kingcr7goalx1biucr7goalx3woooowcr7goalx2";
String sub = "cr7goalhicrcr9cr7goalx2wow";
System.out.println(getMaxSubString(str,sub));
}
結果:
cr7goalx2
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