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			25 lines
		
	
	
		
			361 B
		
	
	
	
		
			Java
		
	
	
	
			
		
		
	
	
			25 lines
		
	
	
		
			361 B
		
	
	
	
		
			Java
		
	
	
	
| interface I
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| {
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|   public void m();
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| }
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| 
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| abstract class A implements I
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| {
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|   // But doesn't define m()
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| }
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| 
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| public class pr8823 extends A // which means it implements I
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| {
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|   public static void main(String[] args)
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|   {
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|     // Defining c as either I or C will work.
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|     A c = new pr8823();
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|     c.m();
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|   }
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| 
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|   public void m()
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|   {
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|     System.out.println("Hello World!");
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|   }
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| }
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