检查是否所有 JComboBoxes 都选择了任何索引（索引 0 除外）

Question

I have this code sample. 

    JComboBox[] set = {jComboBox1, jComboBox2, jComboBox3};        
        for (int i = 0; i < set.length; i++) {

            JComboBox boxes = set[i];
            int index = boxes.getSelectedIndex();

            if (index == 0) {    

                System.out.println("Not every JcomboBox has something selected");                    
                continue;

            } else {

                System.out.println("Every combobox has selected something"); 

            }

我知道每次 for loop 运行时，它都会检查每个 JComboBox 的选定值。如果至少有一个 JComboBox 选择了某些东西（除 0 之外的所有其他索引），它将不会执行 if 语句，因此它会转到 else 语句。 但我需要打印 -Every combobox has selected something- 语句，当且仅当 all of JComboBoxes have选择了一些东西（除索引 0 以外的任何索引）但没有他们中的任何一个选择了一些东西（即除 0 以外的任何索引）

谁能帮我解决这个问题？？？

Answer 1

尝试使用 flag 变量。

boolean allSelected = true;  //Initially set it to true which indicates that all selected values are other than 0
for (int i = 0; i < set.length; i++) {

    JComboBox boxes = set[i];
    int index = boxes.getSelectedIndex();

    if (index == 0) {    
        allSelected = false;  //If index is 0, make it false
    }
} 

if(allSelected)
{
    System.out.println("Every combobox has selected something"); 
}
else
{
    System.out.println("Not every JcomboBox has something selected"); 
}

检查是否所有 JComboBoxes 都选择了任何索引（索引 0 除外）

Check if all JComboBoxes have something selected any indexes (Other than index 0)

java

swing

for-loop

jcombobox