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public void metodo1(){
int[] resultado = new int[3];
int otroResultado = 5;
System.out.println(resultado[0]); //0
System.out.println(otroResultado); // 5
metodo2(otroResultado,resultado);
System.out.println(resultado[0]); // 1
System.out.println(otroResultado); // 5
}
public void metodo2(int a, int[] b){
b[0] = 1;
a = 6;
b = new int[4];
b[0]=3;
System.out.println(b[0]); // 3
System.out.println(a); // 6
}
// overloading
public class Calculator {
public static void main(String [] args){
int i1 = 2;
int i2 = 3;
long l1 = 4;
long l2 = 5;
Integer i3 = 6;
Calculator c = new Calculator();
System.out.println(c.sum(i1,i2)); // int
System.out.println(c.sum(i3,i2)); // Integer
System.out.println(c.sum(l1,l2)); // long
System.out.println(c.sum(i1,l2)); // long
Object o = "hola";
c.m1(o); // object
c.m1("adeu"); // string
}
public void m1(String s){
System.out.println("String");
}
public void m1(CharSequence s){
System.out.println("Object");
}
public void m1(Object s){
System.out.println("Object");
}
public int sum (int a, int b){
System.out.println("int");
return a+b;
}
public long sum (long a, long b){
System.out.println("long");
return a+b;
}
public int sum (Integer a, int b){
System.out.println("Integer");
return a+b;
}
public long sum(int ...a){
long r=0;
if (a!=null){
for(int i:a){
r +=i;
}
}
return r;
}
}
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