2 Write the program to demonstrate the use of method that take variable length arguments using Var-args function in Java.

Code:

class VarargExample
{
public int sumNumber(int ... args)
{
System.out.println("argument length: " + args.length);
int sum = 0;

for(int x: args)
{
sum += x;
}
return sum;
}

public static void main( String[] args )
{
VarargExample ex = new VarargExample();

int sum2 = ex.sumNumber(2, 4);
System.out.println("sum2 = " + sum2);

int sum3 = ex.sumNumber(1, 3, 5);
System.out.println("sum3 = " + sum3);

int sum4 = ex.sumNumber(1, 3, 5, 7);
System.out.println("sum4 = " + sum4);
}
}

Ouput:

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