不兼容的类型：对象无法在java netbeans中转换为String [英] Incompatible types : Object cant not be converted to String in java netbeans

问题描述

我正在尝试在我的项目中使用object Array而且我收到错误：

I'm trying to use object Array in my project and i get an error :

incompatible types: Object cannot be converted to String

此行：

ST1 = new String[]{emt1, emt2, emt3, emt4};

现在我不知道这个错误的原因是什么。请帮帮我。

Now i don't figure out what is the cause of this error . please help me .

Object[] ST1;
Object emt1,emt2,emt3,emt4;


private void jButton3ActionPerformed(ActionEvent evt) {
    try {
        emt1 = null;
        emt2 = null;
        emt3 = null;
        emt4 = null;
        ST1 = new String[]{emt1, emt2, emt3, emt4};
    }
      ....

推荐答案

你有两种方法就是将每个Object emt1，emt2，..转换为String，如下所示：

You have two way one is to cast every Object emt1, emt2, .. to String like this :

ST1 = new String[]{(String)emt1, (String)emt2, (String)emt3, (String)emt4};

或者您应该更改属性的类型：

Or you should to change the type of your attribute:

Object emt1, emt2, emt3, emt4;

To String

To String

String emt1, emt2, emt3, emt4;
ST1 = new String[]{emt1, emt2, emt3, emt4};

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