问题
单项选择题
在Swing中,JButton的直接父类是( )。
A.java.awt.Button
B.java.awt.Container
C.javax.swing.Button
D.javax.swing.AbstractButton
答案
参考答案:D
解析:本题考查如下的结构图。
在Swing中,JButton的直接父类是( )。
A.java.awt.Button
B.java.awt.Container
C.javax.swing.Button
D.javax.swing.AbstractButton
参考答案:D
解析:本题考查如下的结构图。
Fill in the blanks. 填空。 | |
1. In September, it is and . 2. In February, the weather is and . 3. In April, it is and . 4. In August, the weather is and . 5. In , the weather is hot. 6. In , the weather is cold. |