interface Base {    

 boolean m

interface Base {    
  boolean m1();    
  byte m2(short s); 
 } 

Which two code fragments will compile?

1. interface Base2 implements Base { }

    

2. abstract class Class2 extends Base { 
      public boolean m1(){ 
        return true; 
      }
    }

    

3. abstract class Class2 implements Base {}

    

4. abstract class Class2 implements Base { 
      public boolean m1(){ 
        return (7 > 4); 
      }
    }

    

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