android studio：设置全局字符串数组时遇到问题

Question

您好，我正在开发一个使用全局数组的 android studio 项目， 我可以很好地从全局数组中读取，并且写入没有问题 到全局整数，但我不知道如何设置全局 代码中的数组，这是项目的重要部分：

在 android manifest xml 的 application 标签下添加了这个：

android:name=".Globals"

java 类全局变量：

import android.app.Application;

public class Globals extends Application {

public int empnum=13;
public int getData3() {
return empnum;
}
public void setData3(int empnum) {
this.empnum = empnum;
}

public String[] passw = {"0123","0123","0123","0123","0123","0123","0123","0123","0123","0123","0123","0123","0123"};
public String[] getData4() {
return passw;
}
public void setData4(String[] passw) {
this.passw = passw;
}

public int login=0;
public int getData5() {
return login;
}
public void setData5(int login) {
this.login = login;
}

public String[] empname = {"Name1","Name2","Name3","Name4","Name5","Name6","Name7","Name8","Name9","Name10","Name11","Name12","Name13","Not logged in"};
public String[] getData6() {
return empname;
}
public void setData6(String[] empname) {
    this.empname = empname;
}

这是我遇到问题的代码块

java类TimeIn的内部类：

final Globals g = (Globals) getApplication();
final String[] empname = g.getData6();
final String[] passw = g.getData4();


public void onClick(View v) {

i = 0;
String empname = edit2.getText().toString();
int getemn = Integer.parseInt(edit.getText().toString());

    if (i == 0 && h == 0) {
        g.setData3(getemn);

        g.setData6(String[getemn], empname); // This one line right here won't compile, I have tried different combinations but have had 0 luck
    i = 1;
    h = 1;
        }
    }    

我在获取和使用字符串数组时没有问题，这就是获取的方法 一个数组值并将其与字符串进行比较：

public void onClick(View v) {

i = 0;
String getemp = edit2.getText().toString();
int getemn = Integer.parseInt(edit.getText().toString());


if (i == 0 && getemp.equals(passw[getemn])) { // All of this works perfectly
    g.setData3(getemn);
    g.setData5(0);
    tfone.setText("Empoyee " + getemn);
    tftwo.setText("Logged in");
    i = 1;
}
if (i == 0 && getemp != (passw[getemn])) {
    tfone.setText("No matches found");
    edit2.setText("Not logged in");
    i = 1;
}

}

所以我知道这行代码是错误的：

g.setData6(String[getemn], empname); 

但是对于 我的生活我不知道应该怎么写，唯一的错误提示是我 从悬停在线上获得-

预期的数组类型；找到'java.lang.String'

有人知道我做错了什么吗？

Answer 1

解决了！！事实证明我必须修改我的 Globals 类的 setter 部分，所以 Globals 类中的第一部分（getter 方法）是正确的：

public String[] compname = {"Manager's company", "Company2", "Company3", "Company4", "Company5", "Company6", "Company7", "Company8", "Company9", "Company10", "Company11", "Company12", "Company13", "Not punched in"};
public String[] getData7() {
return compname;
}

我不得不将我的 Globals 类的 getter 部分更改为：

public int setcmpn = 0; // <-- Edited, this should equal some integer value
public void setData7(int setcmpn, String compname) {  // removed [] from 2nd argument
this.setcmpn = setcmpn;
this.compname[setcmpn] = compname; // added in [] after array's name and fill it with the first argument from setData7 method
}

要从任何类中设置所需索引的值，只需使用：

Globals g = (Globals) getApplication();
g.setData7(getemn, getemp);

getemn 是一个整数，getemp 是一个字符串。

Answer 2

在Global类中，你用一个参数声明方法

public void setData6(String[] empname) {
    this.empname = empname;
}

但是当你调用时，你放了2个参数g.setData6(String[getemn], empname);
您应该删除一个参数
或在Globals 类中添加另一个带有2个参数的方法

还有 你错了

   ...
    String empname = edit2.getText().toString();
    int getemn = Integer.parseInt(edit.getText().toString());
    ...
    g.setData6(String[getemn], empname); // This one line right here won't compile, I have tried different combinations but have had 0 luck

setData6 函数现在需要 2 个参数，一个是 String array，另一个是 String 但是您将String array 放入函数的方式是错误的 这是一个简单的例子，展示了如何将String array 传递给函数

public class Test {
    public static void setData6(String[] empnameList, String empname) { // with the `String array` you should declare the variable name like `empnameList` or `arrEmpname` NOT `empname` because `empname` make confusing when you read code
        this.empnameList = empnameList;
        this.empname = empname;
    }

    public static void main(String[] args) {
        String[] strArray = new String[]{"Name1","Name2","Name2"};
        String empName = "Na";

        setData6(strArray,empName); // call method with 2 parameters here
    }
}

希望有帮助