Question

我正在尝试创建一个由三个String组成的数组，该数组元素的值是我的姓名，性别和电子邮件。然后编写一个for循环以打印出每个元素。

我收到一条错误消息：当前项目中存在错误。

帮助我的代码中的错误是非常好的。

public class arraytest {

private String firstName; 
private String gender; 
private String emailA;

/** Constructor */

public arraytest(String firstName, String gender, String emailA){
    this.firstName = firstName;
    this.gender = gender;
    this.emailA = emailA;
}


/** Getter - Returns the first name */ 

public String getFirstName() {
    return firstName;
}

/** Return the gender */ 

public String getGender() {
    return gender;
}

/** Returns the email address */

public String getEmailA() {
    return emailA;
}

public void setInfo(String firstName, String gender, String emailA){
    this.firstName = firstName;
    this.gender = gender;
    this.emailA = emailA;
}

public static void main (String[] args) {

String[] myInfo = new String[3];

arraytest test = new arraytest("Cameron","Male","cam@live.com");

myInfo[0] = test.firstName;
myInfo[1] = test.gender;
myInfo[2] = test.emailA;

for (int i=0; i<myInfo.length; i++) {

    System.out.println(myInfo[i]);

}

}

Answer 1

您创建了一个已经包含这3个元素的类。如果要将它们放在数组中，可以执行以下操作：

public static void main (String[] args) {

arraytest[] person = new arraytest[3];

test = new arraytest("Cameron","Male","cam@live.com");

person[0] = test.firstName;
person[1] = test.gender;
person[2] = test.firstName;

for (int i=0; i<person.length; i++) {

    System.out.println(person[i]);

}

}

创建一个由3个字符串组成的数组

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