EXPRESSIONS

Method Invocation Expressions

15.11

in class

S

, even if that field is hidden by a declaration of a field named

name

 in

class

C

.

The use of

super

 is demonstrated by the following example:

interface I { int x = 0; }

class T1 implements I { int x = 1; }

class T2 extends T1 { int x = 2; }

class T3 extends T2 {

int x = 3;

void test() {

System.out.println("x=\t\t"+x);

System.out.println("super.x=\t\t"+super.x);

System.out.println("((T2)this).x=\t"+((T2)this).x);

System.out.println("((T1)this).x=\t"+((T1)this).x);

System.out.println("((I)this).x=\t"+((I)this).x);

}

}

class Test {

public static void main(String[] args) {

new T3().test();

}

}

which produces the output:

x=

3

super.x=

2

((T2)this).x=

2

((T1)this).x=

1

((I)this).x=

0

Within class

T3

, the expression

super.x

 is treated exactly as if it were:

((T2)this).x

15.11   Method Invocation Expressions

A method invocation expression is used to invoke a class or instance method.

MethodInvocation:

MethodName

 (

ArgumentList

opt

 )

Primary

 .

Identifier

 (

ArgumentList

opt

 )

super .

Identifier

 (

ArgumentList

opt

 )

The definition of

ArgumentList

 from  15.8 is repeated here for convenience:

ArgumentList:

Expression

ArgumentList

 ,

Expression

323