public static void main(String[] args){
String s1 = “abc”;
String s2 = “xyz”;
show(s1,s2);
System.out.println(s1+”-----”+s2);
}
static void show(String s1,String s2){
s1 = s2+s1+”Q”; s2 = “W”+s1; }
a)abc-----xyz
b)xyzabcQ-----xyzWabc
c)xyzabcQ---- xyzabcQWabc
d)xyzQ----Wabc
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