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package cn.edu.uibe;
public class HelloWorld {
public static void main(String[] args) {
System.out.println("Hello World!");
}
}
package cn.edu.uibe;
public class HelloWorld {
public static void main(String[] args) {
System.out.println("Hello World!");
}
}
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public class Light {
private int brightness = 5;
public void brighten(Light another){
another.brightness++;
}
public static void main(String[] args) {
 
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public class HelloWorld {
public static void main(String[] args) {
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