

review
Presentation
•
Computers
•
3rd Grade
•
Practice Problem
•
Easy
Arasaka Teacher
Used 2+ times
FREE Resource
3 Slides • 4 Questions
1
Scope
By Arasaka Teacher
2
​class outputting{ static Integer data = l; public static void outputData() { System.out.println(data); } public static void main(String args[]) { System.out.println(data); outputData();}
3
public class Student { // 全局变量(成员变量) String name; // 保存学生的名字,整个类中都可以使用 // 方法,带有参数
public void sayHello(String greeting) {
// 参数变量:greeting //
局部变量:message
String message = greeting + ", " + name;
System.out.println(message); // 输出:Hello, 小明 }
public static void main(String[] args) {
Student stu = new Student();
stu.name = "小明"; // 设置全局变量 stu.sayHello("Hello"); // 传入参数变量 } }
4
Drag and Drop
String name;
public void bark(int times) {
String sound = "Woof";
for (int i = 0; i < times; i++) {
System.out.println(name + ": " + sound);
}
}
public static void main(String[] args) {
Dog d = new Dog();
d.name = "Xiao Hei";
d.bark(3);
}
5
Dropdown
int totalCount = 0;
public void addCount(int number) {
totalCount += added;
System.out.println("Added: " + added);
System.out.println("Total: " + totalCount);
}
public static void main(String[] args) {
Counter c = new Counter();
c.addCount(5);
}
}
6
Fill in the Blanks
7
Labelling
label
getSum()
No (nothing to assign)
No return value (void)
Yes, must use return to give back a valu
Calculates and returns a result
Performs an action (e.g., print)
Has a return value (int, String, etc.)
Scope
By Arasaka Teacher
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