Example usage for java.lang Long MAX

Introduction

In this page you can find the example usage for java.lang Long MAX_VALUE.

Prototype

long MAX_VALUE

To view the source code for java.lang Long MAX_VALUE.

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Document

A constant holding the maximum value a long can have, 2⁶³-1.

Usage

From source file:jp.primecloud.auto.api.ApiValidate.java

public static void validateComponentNo(String componentNo) {
    ValidateUtil.required(componentNo, "EAPI-000001", new Object[] { PARAM_NAME_COMPONENT_NO });
    ValidateUtil.longInRange(componentNo, new Long(1), Long.MAX_VALUE, "EAPI-000002",
            new Object[] { PARAM_NAME_COMPONENT_NO, new Long(1), Long.MAX_VALUE });
}

From source file:MathUtils.java

public static long multiplyAndCheck(long a, long b) {
    long ret;/*www  .j  av  a  2  s .  c o  m*/
    String msg = "overflow: multiply";
    if (a > b) {
        // use symmetry to reduce boundry cases
        ret = multiplyAndCheck(b, a);
    } else {
        if (a < 0) {
            if (b < 0) {
                // check for positive overflow with negative a, negative b
                if (a >= Long.MAX_VALUE / b) {
                    ret = a * b;
                } else {
                    throw new ArithmeticException(msg);
                }
            } else if (b > 0) {
                // check for negative overflow with negative a, positive b
                if (Long.MIN_VALUE / b <= a) {
                    ret = a * b;
                } else {
                    throw new ArithmeticException(msg);

                }
            } else {
                // assert b == 0
                ret = 0;
            }
        } else if (a > 0) {
            // assert a > 0
            // assert b > 0

            // check for positive overflow with positive a, positive b
            if (a <= Long.MAX_VALUE / b) {
                ret = a * b;
            } else {
                throw new ArithmeticException(msg);
            }
        } else {
            // assert a == 0
            ret = 0;
        }
    }
    return ret;
}

From source file:Main.java

/**
 * Compute e^x to a given scale. Break x into its whole and fraction parts
 * and compute (e^(1 + fraction/whole))^whole using Taylor's formula.
 * //  www. j  av  a  2  s .c  o m
 * @param x
 *            the value of x
 * @param scale
 *            the desired scale of the result
 * @return the result value
 */
public static BigDecimal exp(BigDecimal x, int scale) {
    // e^0 = 1
    if (x.signum() == 0) {
        return BigDecimal.valueOf(1);
    }

    // If x is negative, return 1/(e^-x).
    else if (x.signum() == -1) {
        return BigDecimal.valueOf(1).divide(exp(x.negate(), scale), scale, BigDecimal.ROUND_HALF_EVEN);
    }

    // Compute the whole part of x.
    BigDecimal xWhole = x.setScale(0, BigDecimal.ROUND_DOWN);

    // If there isn't a whole part, compute and return e^x.
    if (xWhole.signum() == 0) {
        return expTaylor(x, scale);
    }

    // Compute the fraction part of x.
    BigDecimal xFraction = x.subtract(xWhole);

    // z = 1 + fraction/whole
    BigDecimal z = BigDecimal.valueOf(1).add(xFraction.divide(xWhole, scale, BigDecimal.ROUND_HALF_EVEN));

    // t = e^z
    BigDecimal t = expTaylor(z, scale);

    BigDecimal maxLong = BigDecimal.valueOf(Long.MAX_VALUE);
    BigDecimal result = BigDecimal.valueOf(1);

    // Compute and return t^whole using intPower().
    // If whole > Long.MAX_VALUE, then first compute products
    // of e^Long.MAX_VALUE.
    while (xWhole.compareTo(maxLong) >= 0) {
        result = result.multiply(intPower(t, Long.MAX_VALUE, scale)).setScale(scale,
                BigDecimal.ROUND_HALF_EVEN);
        xWhole = xWhole.subtract(maxLong);

        Thread.yield();
    }
    return result.multiply(intPower(t, xWhole.longValue(), scale)).setScale(scale, BigDecimal.ROUND_HALF_EVEN);
}

From source file:examples.utils.CifarReader.java

public static void downloadAndExtract() {

    if (new File("data", TEST_DATA_FILE).exists() == false) {
        try {/*  w ww .  ja  va 2s.c  om*/
            if (new File("data", ARCHIVE_BINARY_FILE).exists() == false) {
                URL website = new URL("http://www.cs.toronto.edu/~kriz/" + ARCHIVE_BINARY_FILE);
                FileOutputStream fos = new FileOutputStream("data/" + ARCHIVE_BINARY_FILE);
                fos.getChannel().transferFrom(Channels.newChannel(website.openStream()), 0, Long.MAX_VALUE);
                fos.close();
            }
            TarArchiveInputStream tar = new TarArchiveInputStream(
                    new GZIPInputStream(new FileInputStream("data/" + ARCHIVE_BINARY_FILE)));
            TarArchiveEntry entry = null;
            while ((entry = tar.getNextTarEntry()) != null) {
                if (entry.isDirectory()) {
                    new File("data", entry.getName()).mkdirs();
                } else {
                    byte data[] = new byte[2048];
                    int count;
                    BufferedOutputStream bos = new BufferedOutputStream(
                            new FileOutputStream(new File("data/", entry.getName())), 2048);

                    while ((count = tar.read(data, 0, 2048)) != -1) {
                        bos.write(data, 0, count);
                    }
                    bos.close();
                }
            }
            tar.close();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}

From source file:ch.cyberduck.core.sftp.SFTPQuotaFeature.java

@Override
public Space get() throws BackgroundException {
    final ThreadLocal<Space> quota = new ThreadLocal<Space>() {
        @Override//from  w  w w . j  av a  2s.c o  m
        protected Space initialValue() {
            return new Space(0L, Long.MAX_VALUE);
        }
    };
    final Path home = new SFTPHomeDirectoryService(session).find();
    new SFTPCommandFeature(session).send(String.format("df -Pk %s | awk '{print $3, $4}'", home.getAbsolute()),
            new DisabledProgressListener(), new TranscriptListener() {
                @Override
                public void log(final Type request, final String output) {
                    switch (request) {
                    case response:
                        final String[] numbers = StringUtils.split(output, ' ');
                        if (numbers.length == 2) {
                            try {
                                quota.set(new Space(Long.valueOf(numbers[0]) * 1000L,
                                        Long.valueOf(numbers[1]) * 1000L));
                            } catch (NumberFormatException e) {
                                log.warn(String.format("Ignore line %s", output));
                            }
                        } else {
                            log.warn(String.format("Ignore line %s", output));
                        }
                    }
                }
            });
    return quota.get();
}

From source file:livhuwani.rambuda.test.repository.PersonRepositoryTest.java

@Test
public void CreateUser() {
    //Save Intermediary
    userRepo = ctx.getBean(IntermediaryRepository.class);
    Intermediary user = new Intermediary();
    user.setId(Long.MAX_VALUE + 1);
    user.setIntermediaryCode("E939964");
    intermediary = user;//  w  ww  . j a v a2s .co m
    userRepo.saveAndFlush(intermediary);

    id = intermediary.getId();
    Assert.notNull(id);
}

From source file:cz.cvut.kbss.wpa.dto.test.AbstractObjectCloneTest.java

@Test
public void testUserClone() throws CloneNotSupportedException {
    PlayerDTO p = new PlayerDTO();
    p.setName("Test_name");
    p.setSurname("Test_surname");
    p.setHeight(200);//from  w  w  w . ja v a  2 s. c o  m
    p.setUsername("Test_Username");
    p.setPassword("Test_pass");
    p.setId(Long.MIN_VALUE);

    PlayerDTO clone = (PlayerDTO) p.clone();

    assertEquals(clone.getName(), p.getName());
    assertThat(clone.getId(), sameInstance(p.getId()));
    assertThat(p.getName(), sameInstance(clone.getName()));

    clone.setName("Clone_name");
    clone.setId(Long.MAX_VALUE);

    assertThat(p.getName(), not(sameInstance(clone.getName())));
    assertThat(p.getId(), not(sameInstance(clone.getId())));

    assertThat(clone.getName(), not(p.getName()));
    assertThat(clone.getId(), not(p.getId()));
}

From source file:com.clearspring.analytics.stream.frequency.CountMinSketchTest.java

@Test(expected = IllegalStateException.class)
public void sizeOverflow() {
    CountMinSketch sketch = new CountMinSketch(0.0001, 0.99999, 1);
    sketch.add(3, Long.MAX_VALUE);
    sketch.add(4, 1);//from w ww  . j a  v a 2s  .  com
}

From source file:ch.cyberduck.core.io.SegmentingOutputStream.java

public SegmentingOutputStream(final OutputStream proxy, final Long threshold, final OutputStream buffer) {
    super(proxy);
    this.buffer = buffer;
    this.proxy = proxy;
    this.threshold = -1L == threshold ? Long.MAX_VALUE : threshold;
}

From source file:com.notonthehighstreet.ratel.internal.model.Memory.java

Memory() {
    final long max = Runtime.getRuntime().maxMemory();
    if (max == Long.MAX_VALUE) {
        free = toMB(Runtime.getRuntime().freeMemory());
    } else {/*  w ww .j  a va  2s.c o  m*/
        free = toMB(max - Runtime.getRuntime().totalMemory() + Runtime.getRuntime().freeMemory());
    }
    freeTotal = null;
    total = toMB(Runtime.getRuntime().maxMemory());
}

Example usage for java.lang Long MAX_VALUE

Introduction

Prototype

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Usage