What will be printed by this program? public class Question4 { static String s1,
ID: 3925620 • Letter: W
Question
What will be printed by this program?
public class Question4 {
static String s1,s2,s3,s4;
public static void main (String[] args){
s1 = new String("CAT");
s2 = new String("DOG");
s3 = new String("RAT");
animal(s1,s2);
System.out.println(mixThem(s2,s3));
} //main
private static void animal (String a1, String a2) {
if(a1.equals(a2))
System.out.println(a1);
else
System.out.println(a2);
}
private static String mixThem (String b1, String b2){
String c1 = b1;
b1 = b2;
b2 = new String ("HAT");
System.out.println(b1);
System.out.println(b2);
System.out.println(c1);
System.out.println(s2);
return b2;
}
} //Question4
***Please give the output for the java file
Explanation / Answer
public class Question4 {
static String s1,s2,s3,s4;
public static void main (String[] args){
s1 = new String("CAT"); //Assigns CAT to s1.
s2 = new String("DOG"); //Assigns DOG to s2.
s3 = new String("RAT"); //Assigns RAT to s3.
animal(s1,s2); //Calls the method animal with parameters s1, s2, and will print DOG to output.
System.out.println(mixThem(s2,s3)); //Calls the method mixThem with parameters s2, s3, and will print the word HAT.
} //main
private static void animal (String a1, String a2) {
if(a1.equals(a2)) //If both the parameter are equal
System.out.println(a1); //Prints first string.
else
System.out.println(a2); //If not, prints second string.
}
private static String mixThem (String b1, String b2){
String c1 = b1; //Assigns the first string to c1.
b1 = b2; //Assigns the second string to first string.
b2 = new String ("HAT"); //Assigns the string HAT to second string.
System.out.println(b1); //Prints b1, i.e., RAT
System.out.println(b2); //Prints b2, i.e., HAT
System.out.println(c1); //Prints c1, i.e., DOG
System.out.println(s2); //Prints s2, i.e., DOG
return b2; //Returns b2, i.e., HAT
}
} //Question4
//Therefore, the final output is:
//DOG
//RAT
//HAT
//DOG
//DOG
//HAT
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