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public class Test {
public static void main(String[] args)
{
String a=new String("A");
String b=new String("B");
fun(a,b);
System.out.println(a+","+b);
}
public static void fun(String x,String y)
{
x+=y;
y=x;
}
}

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Java code:

public class pass {

public static void main(String[] args) {
String a=new String("A");
String b=new String("B");
fun(a,b);
System.out.println(a+","+b);
System.out.println(a.concat(b));
}

public static void fun(String x,String y) {
x+=y;
y=x;
}
}




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