test/tools/javac/lambda/funcInterfaces/LambdaTest2_SAM1.java

changeset 1415
01c9d4161882
parent 0
959103a6100f
     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/test/tools/javac/lambda/funcInterfaces/LambdaTest2_SAM1.java	Sat Nov 17 19:01:03 2012 +0000
     1.3 @@ -0,0 +1,99 @@
     1.4 +/*
     1.5 + * Copyright (c) 2011, Oracle and/or its affiliates. All rights reserved.
     1.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
     1.7 + *
     1.8 + * This code is free software; you can redistribute it and/or modify it
     1.9 + * under the terms of the GNU General Public License version 2 only, as
    1.10 + * published by the Free Software Foundation.
    1.11 + *
    1.12 + * This code is distributed in the hope that it will be useful, but WITHOUT
    1.13 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
    1.14 + * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
    1.15 + * version 2 for more details (a copy is included in the LICENSE file that
    1.16 + * accompanied this code).
    1.17 + *
    1.18 + * You should have received a copy of the GNU General Public License version
    1.19 + * 2 along with this work; if not, write to the Free Software Foundation,
    1.20 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
    1.21 + *
    1.22 + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
    1.23 + * or visit www.oracle.com if you need additional information or have any
    1.24 + * questions.
    1.25 + */
    1.26 +
    1.27 +/**
    1.28 + * @test
    1.29 + * @bug 8003280
    1.30 + * @summary Add lambda tests
    1.31 + *   This test is for identifying SAM types 2 and 3, see Helper.java for SAM types
    1.32 + * @compile LambdaTest2_SAM1.java Helper.java
    1.33 + * @run main LambdaTest2_SAM1
    1.34 + */
    1.35 +
    1.36 +import java.util.Collections;
    1.37 +import java.util.List;
    1.38 +import java.util.ArrayList;
    1.39 +import java.io.*;
    1.40 +
    1.41 +public class LambdaTest2_SAM1 {
    1.42 +    private static List<String> strs = new ArrayList<String>();
    1.43 +    private static List<File> files = new ArrayList<File>();
    1.44 +
    1.45 +    public static void main(String[] args) {
    1.46 +        strs.add("copy");
    1.47 +        strs.add("paste");
    1.48 +        strs.add("delete");
    1.49 +        strs.add("rename");
    1.50 +
    1.51 +        files.add(new File("a.txt"));
    1.52 +        files.add(new File("c.txt"));
    1.53 +        files.add(new File("b.txt"));
    1.54 +
    1.55 +        //type #2: Comparator<T>
    1.56 +        Collections.sort(files, (File f1, File f2) -> f1.getName().compareTo(f2.getName()));
    1.57 +        for(File f : files)
    1.58 +            System.out.println(f.getName());
    1.59 +        System.out.println();
    1.60 +        Collections.sort(files, (File f1, File f2) -> (int)(f1.length() - f2.length()));
    1.61 +        for(File f : files)
    1.62 +            System.out.println(f.getName() + " " + f.length());
    1.63 +        System.out.println();
    1.64 +
    1.65 +        LambdaTest2_SAM1 test = new LambdaTest2_SAM1();
    1.66 +
    1.67 +        //type #2:
    1.68 +        test.methodMars((File f) -> {
    1.69 +            System.out.println("implementing Mars<File>.getAge(File f)...");
    1.70 +            return (int)f.length();
    1.71 +        });
    1.72 +        test.methodJupiter((int n) -> n+1);
    1.73 +
    1.74 +        //type #3:
    1.75 +        test.methodXY((List<String> strList) -> strList.size() );
    1.76 +        test.methodXYZ((List<String> strList) -> 20 );
    1.77 +    }
    1.78 +
    1.79 +    //type #2:
    1.80 +    void methodMars(Mars<File> m) {
    1.81 +        System.out.println("methodMars(): SAM type interface Mars object instantiated: " + m);
    1.82 +        System.out.println(m.getAge(new File("a.txt")));
    1.83 +    }
    1.84 +
    1.85 +    //type #2:
    1.86 +    void methodJupiter(Jupiter j) {
    1.87 +        System.out.println("methodJupiter(): SAM type interface Jupiter object instantiated: " + j);
    1.88 +        System.out.println(j.increment(33));
    1.89 +    }
    1.90 +
    1.91 +    //type #3:
    1.92 +    void methodXY(XY xy) {
    1.93 +        System.out.println("methodXY(): SAM type interface XY object instantiated: " + xy);
    1.94 +        System.out.println(xy.getTotal(strs));
    1.95 +    }
    1.96 +
    1.97 +    //type #3:
    1.98 +    void methodXYZ(XYZ xyz) {
    1.99 +        System.out.println("methodXYZ(): SAM type interface XYZ object instantiated: " + xyz);
   1.100 +        System.out.println(xyz.getTotal(strs));
   1.101 +    }
   1.102 +}

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