Question

我有一个字符串

S=

"Apprenant: User1


Temps    |Activité           |Sous Activité      |Action             

12:32:02 |Demonstration      |                   |

12:32:05 |Démonstration      |Mémoire centrale   |Inialisation

12:32:06 |Démonstration      |                   |Chargement

12:32:07 |Démonstration      |                   |Inst Suiv

12:32:11 |Manipulation       |Mémoire centrale   |

12:32:15 |Manipulation       |Unité de commande  |

12:32:17 |Manipulation       |Mémoire centrale   |

12:32:20 |Manipulation       |Mémoire centrale   |Vider la mémoire "

我必须解析它并返回4个字符串（每个字符串在一个变量中），如下所示：

a=12:32:02

b=Demonstration

 c=" "

 d=" "

a=12:32:05

b=Demonstration

c=Mémoire centrale 

d=Inialisation

.............
................ until the end

我的代码：

while( S != null)
{
      str =S.readLine(); // the text is in a TextArea


     String splitted[] = str.split("\\|");

String a = splitted[0].trim();

String b = splitted[1].trim();

String c = splitted[2].trim();

String d = splitted[3].trim();

System.out.println("a="+a);

System.out.println("b="+b);

System.out.println("c="+c);

System.out.println("d="+d);


}

但它不起作用

并且没有考虑S的5个第一行（我不知道该怎么做）

Answer 1

如果您想忽略前五行，请拨打S.readLine()五次。每次调用它时，它都会从输入流中读取（并丢弃）一行文本。

Answer 2

这还不够：

str.split("|");

和

int counter = 0;
while(...){
    counter += 1;
    if (counter<=5) continue;
    ...
}

Answer 3

您的字符串s由多行组成，因此您必须（1）拆分\n，（2）跳过前5行，（3）拆分{{1并且（4）在数据可用时分配变量。这是一个应该给你一个想法的示例代码

\\|

并产生以下输出：

public static void main(String[] args) {

    String s = 
        "Apprenant: User1\n" +
        "\n" +
        "\n" +
        "Temps    |Activité           |Sous Activité      |Action\n" +
        "\n" +
        "12:32:02 |Demonstration      |                   |\n" +
        "\n" +
        "12:32:05 |Démonstration      |Mémoire centrale   |Inialisation\n" +
        "\n" +
        "12:32:06 |Démonstration      |                   |Chargement\n" +
        "\n" +
        "12:32:07 |Démonstration      |                   |Inst Suiv\n" +
        "\n" +
        "12:32:11 |Manipulation       |Mémoire centrale   |\n" +
        "\n" +
        "12:32:15 |Manipulation       |Unité de commande  |\n" +
        "\n" +
        "12:32:17 |Manipulation       |Mémoire centrale   |\n" +
        "\n" +
        "12:32:20 |Manipulation       |Mémoire centrale   |Vider la mémoire\n";

    String[] rows = s.split("\n");
    for (int i = 5; i < rows.length; i++) {
        String[] sections = rows[i].split("\\|");
        if (sections.length > 1) {
            String a = sections[0].trim();
            String b = "";
            String c = "";
            String d = "";
            if (sections.length == 2)
                b = sections[1].trim();
            if (sections.length == 3);
                c = sections[2].trim();
            if (sections.length == 4)
                d = sections[3].trim();
            System.out.println("a = " + a + "; b = " + b + 
                    "; c = " + c + "; d = " + d);
        }
    }

}

从字符之间获取字符串

3 个答案: