本文整理了Java中java.util.Objects.equals()方法的一些代码示例，展示了Objects.equals()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。Objects.equals()方法的具体详情如下：
包路径：java.util.Objects
类名称：Objects
方法名：equals

Objects.equals介绍

[英]Null-safe equivalent of a.equals(b).
[中]a.equals（b）的空安全等价物。

代码示例

代码示例来源：origin: skylot/jadx

@Override
public int indexOf(Object o) {
  int len = arr.length;
  for (int i = 0; i < len; i++) {
    E e = arr[i];
    if (Objects.equals(e, o)) {
      return i;
    }
  }
  return -1;
}

代码示例来源：origin: skylot/jadx

@Override
public int lastIndexOf(Object o) {
  for (int i = arr.length - 1; i > 0; i--) {
    E e = arr[i];
    if (Objects.equals(e, o)) {
      return i;
    }
  }
  return -1;
}

代码示例来源：origin: stackoverflow.com

// These two have the same value
new String("test").equals("test") // --> true 

// ... but they are not the same object
new String("test") == "test" // --> false 

// ... neither are these
new String("test") == new String("test") // --> false 

// ... but these are because literals are interned by 
// the compiler and thus refer to the same object
"test" == "test" // --> true 

// ... but you should really just call Objects.equals()
Objects.equals("test", new String("test")) // --> true
Objects.equals(null, "test") // --> false

代码示例来源：origin: spring-projects/spring-framework

@Override
public boolean equals(Object o) {
  if (this == o) {
    return true;
  }
  if (o == null || getClass() != o.getClass()) {
    return false;
  }
  Entry entry = (Entry) o;
  return Objects.equals(this.metadata, entry.metadata) &&
      Objects.equals(this.importClassName, entry.importClassName);
}

代码示例来源：origin: stackoverflow.com

public static <T, E> T getKeyByValue(Map<T, E> map, E value) {
  for (Entry<T, E> entry : map.entrySet()) {
    if (Objects.equals(value, entry.getValue())) {
      return entry.getKey();
    }
  }
  return null;
}

代码示例来源：origin: square/okhttp

@Override public boolean equals(@Nullable Object other) {
 if (other == this) return true;
 return other instanceof CertificatePinner
   && (Objects.equals(certificateChainCleaner,
   ((CertificatePinner) other).certificateChainCleaner)
   && pins.equals(((CertificatePinner) other).pins));
}

代码示例来源：origin: skylot/jadx

/**
 * 'Hard' equals, compare all arguments
 */
public boolean isDeepEquals(InsnNode other) {
  if (this == other) {
    return true;
  }
  return isSame(other)
      && Objects.equals(result, other.result)
      && Objects.equals(arguments, other.arguments);
}

代码示例来源：origin: stackoverflow.com

public static <T, E> Set<T> getKeysByValue(Map<T, E> map, E value) {
  Set<T> keys = new HashSet<T>();
  for (Entry<T, E> entry : map.entrySet()) {
    if (Objects.equals(value, entry.getValue())) {
      keys.add(entry.getKey());
    }
  }
  return keys;
}

代码示例来源：origin: stackoverflow.com

public static <T, E> Set<T> getKeysByValue(Map<T, E> map, E value) {
  return map.entrySet()
       .stream()
       .filter(entry -> Objects.equals(entry.getValue(), value))
       .map(Map.Entry::getKey)
       .collect(Collectors.toSet());
}

代码示例来源：origin: skylot/jadx

@Override
public boolean equals(Object o) {
  if (this == o) {
    return true;
  }
  if (o == null || getClass() != o.getClass()) {
    return false;
  }
  ExceptionHandler that = (ExceptionHandler) o;
  return handleOffset == that.handleOffset &&
      catchTypes.equals(that.catchTypes) &&
      Objects.equals(tryBlock, that.tryBlock);
}

代码示例来源：origin: square/okhttp

boolean equalsNonHost(Address that) {
 return this.dns.equals(that.dns)
   && this.proxyAuthenticator.equals(that.proxyAuthenticator)
   && this.protocols.equals(that.protocols)
   && this.connectionSpecs.equals(that.connectionSpecs)
   && this.proxySelector.equals(that.proxySelector)
   && Objects.equals(this.proxy, that.proxy)
   && Objects.equals(this.sslSocketFactory, that.sslSocketFactory)
   && Objects.equals(this.hostnameVerifier, that.hostnameVerifier)
   && Objects.equals(this.certificatePinner, that.certificatePinner)
   && this.url().port() == that.url().port();
}

代码示例来源：origin: square/okhttp

/** Returns a certificate pinner that uses {@code certificateChainCleaner}. */
CertificatePinner withCertificateChainCleaner(
  @Nullable CertificateChainCleaner certificateChainCleaner) {
 return Objects.equals(this.certificateChainCleaner, certificateChainCleaner)
   ? this
   : new CertificatePinner(pins, certificateChainCleaner);
}

代码示例来源：origin: spring-projects/spring-framework

/**
 * Return the {@link DataUnit} matching the specified {@code suffix}.
 * @param suffix one of the standard suffix
 * @return the {@link DataUnit} matching the specified {@code suffix}
 * @throws IllegalArgumentException if the suffix does not match any
 * of this enum's constants
 */
public static DataUnit fromSuffix(String suffix) {
  for (DataUnit candidate : values()) {
    if (Objects.equals(candidate.suffix, suffix)) {
      return candidate;
    }
  }
  throw new IllegalArgumentException("Unknown unit '" + suffix + "'");
}

代码示例来源：origin: spring-projects/spring-framework

@Override
public boolean equals(Object o) {
  if (this == o) return true;
  if (o == null || getClass() != o.getClass()) return false;
  ConstructorDependency that = (ConstructorDependency) o;
  return spouseAge == that.spouseAge &&
      Objects.equals(spouse, that.spouse) &&
      Objects.equals(beanName, that.beanName);
}

代码示例来源：origin: apache/incubator-dubbo

@Override
public boolean equals(Object o) {
  if (this == o) {
    return true;
  }
  if (!(o instanceof ServiceDefinition)) {
    return false;
  }
  ServiceDefinition that = (ServiceDefinition) o;
  return Objects.equals(getCanonicalName(), that.getCanonicalName()) &&
      Objects.equals(getCodeSource(), that.getCodeSource()) &&
      Objects.equals(getMethods(), that.getMethods()) &&
      Objects.equals(getTypes(), that.getTypes());
}

代码示例来源：origin: apache/incubator-dubbo

@Override
public boolean equals(Object o) {
  if (this == o) {
    return true;
  }
  if (!(o instanceof ServiceDefinition)) {
    return false;
  }
  ServiceDefinition that = (ServiceDefinition) o;
  return Objects.equals(getCanonicalName(), that.getCanonicalName()) &&
      Objects.equals(getCodeSource(), that.getCodeSource()) &&
      Objects.equals(getMethods(), that.getMethods()) &&
      Objects.equals(getTypes(), that.getTypes());
}

代码示例来源：origin: skylot/jadx

@Override
public boolean equals(Object obj) {
  if (this == obj) {
    return true;
  }
  if (!(obj instanceof RegisterArg)) {
    return false;
  }
  RegisterArg other = (RegisterArg) obj;
  return regNum == other.regNum
      && type.equals(other.type)
      && Objects.equals(sVar, other.getSVar());
}

代码示例来源：origin: apache/incubator-dubbo

@Override
public boolean equals(Object o) {
  if (this == o) {
    return true;
  }
  if (!(o instanceof MethodDefinition)) {
    return false;
  }
  MethodDefinition that = (MethodDefinition) o;
  return Objects.equals(getName(), that.getName()) &&
      Arrays.equals(getParameterTypes(), that.getParameterTypes()) &&
      Objects.equals(getReturnType(), that.getReturnType()) &&
      Objects.equals(getParameters(), that.getParameters());
}

代码示例来源：origin: apache/incubator-dubbo

@Override
public boolean equals(Object o) {
  if (this == o) {
    return true;
  }
  if (!(o instanceof MethodDefinition)) {
    return false;
  }
  MethodDefinition that = (MethodDefinition) o;
  return Objects.equals(getName(), that.getName()) &&
      Arrays.equals(getParameterTypes(), that.getParameterTypes()) &&
      Objects.equals(getReturnType(), that.getReturnType()) &&
      Objects.equals(getParameters(), that.getParameters());
}

代码示例来源：origin: square/okhttp

/**
 * Returns true if none of the Vary headers have changed between {@code cachedRequest} and {@code
 * newRequest}.
 */
public static boolean varyMatches(
  Response cachedResponse, Headers cachedRequest, Request newRequest) {
 for (String field : varyFields(cachedResponse)) {
  if (!Objects.equals(cachedRequest.values(field), newRequest.headers(field))) return false;
 }
 return true;
}