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1.
public class Test1{
    public static void main(String[] args){
        System.out.println(2.0 - 1.1);
    }
}
2.
public class Test2{
    public static void main(String[] args){
        System.out.println(12345 + 5432l);
    }
}
3.
public class Test3{
    public static void main(String[] args){
        char x = 'X';
        int i = 0;
        System.out.println(true ? x : 0);
        System.out.println(false ? i : x);
    }
}
4.
public class Test4{
    public static void main(String[] args){
        System.out.println("H" + "a");
        System.out.println('H' + 'a');
    }
}
5.
public class Test5{
    public static void main(String[] args){
        //\u0022ÊÇË«ÒýºÅµÄתÒå
        System.out.println("a\u0022.length() + \u0022b".length());
    }
    }
}
6.
public class Test6{
    public static void main(String[] args){
        //Here:\u
        System.out.println("hello");
    }
}
7.
public class Test7{
    public static void main(String[] args){
        System.out.print("Hello ");
        http://www.google.com
        System.out.println("world");
    }
}
//½â»ó
1.
public class Test1{
 


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import java.security.MessageDigest;   
  
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