1.Convert to decimal numbers:

• 00001001₂
• 00000111₂
• 00001010₂

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2. Convert to binary numbers (assume byte (8 bits) datatype)

• 3₁₀
• 5₁₀
• -5₁₀
• -4₁₀

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3.Calculate binary result and convert your result to decimal number (assume byte (8 bits) datatype):

• 00001001₂+00001001₂
• 00000111₂+00001001₂
• 00001010₂+11111001₂

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4.Find the mistake in the following class definition:

public class Test_fun2 {
    public static void f1 (int x, int y){
         System.out.println("f1, x="+x+"; y="+y);
    };
    public static int f1 (int x, int z){
         System.out.println("f2, x="+x+"; z="+z);
         return x;
    };
    public static void main(String args[]) {
          int x,y,z;
          x=0;y=0;z=0;
          System.out.println("in Class Test_fun");
          System.out.println("z="+z);
          f1(x,y);
          int i=f1(x,z);
    };
};
 

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5.Predict the output of the following program:

public class Test_fun3 {
    public static int z;
    public static int f1 (int x, int y){
         System.out.println("f1, x="+x+"; z="+z);
         return x;
    };

    public static int f1 (double x, int z){
         System.out.println("f2, x="+x+"; z="+z);
         return z;
    };
    public static void main(String args[]) {
         System.out.println("in Class Test_fun");
         z=0;
         int x=f1(1,1);
         System.out.println("after (a), x="+x+"; z="+z);
         x=f1(1.0,5);
         System.out.println("after (b), x="+x+"; z="+z);
    };
};
 

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