outertest.java

来自「java2 primer plus一书源程序」· Java 代码 · 共 29 行

public class OuterTest
{
    public static int outerInt = 5;

    public static class StaticInner
    {
        public static int doubleVal( int n )
        {
            System.out.println( "outerInt=" + outerInt );
            return 2*n;
        }
    }

    public void testInner()
    {
        int a = 5;
        System.out.println( "a=" + a + ", doubleVal=" + StaticInner.doubleVal( a ) );
    }

    public static void main( String[] args )
    {
        int n = 7;
        System.out.println( "n=" + n + ", doubleVal=" + OuterTest.StaticInner.doubleVal( 7 ) );

        OuterTest out = new OuterTest();
        out.testInner();
    }
}