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<h3>
e338.
Comparing Arrays</h3>
<pre>
// null arrays are equal
boolean[] bArr1 = null;
boolean[] bArr2 = null;
boolean b = Arrays.equals(bArr1, bArr2); // true
// Compare two boolean arrays
bArr1 = new boolean[]{<font color="#0066ff"><i>true</i></font>, <font color="#0066ff"><i>false</i></font>};
bArr2 = new boolean[]{<font color="#0066ff"><i>true</i></font>, <font color="#0066ff"><i>false</i></font>};
b = Arrays.equals(bArr1, null); // false
b = Arrays.equals(bArr1, bArr2); // true
// There are equals() methods for all eight primitive types
b = Arrays.equals(new byte[]{<font color="#0066ff"><i>0</i></font>}, new byte[]{<font color="#0066ff"><i>0</i></font>}); // true
b = Arrays.equals(new char[]{<font color="#0066ff"><i>'a'</i></font>}, new char[]{<font color="#0066ff"><i>'a'</i></font>}); // true
b = Arrays.equals(new short[]{<font color="#0066ff"><i>0</i></font>}, new short[]{<font color="#0066ff"><i>0</i></font>}); // true
b = Arrays.equals(new int[]{<font color="#0066ff"><i>0</i></font>}, new int[]{<font color="#0066ff"><i>0</i></font>}); // true
b = Arrays.equals(new long[]{<font color="#0066ff"><i>0L</i></font>}, new long[]{<font color="#0066ff"><i>0L</i></font>}); // true
b = Arrays.equals(new float[]{<font color="#0066ff"><i>0F</i></font>}, new float[]{<font color="#0066ff"><i>0F</i></font>}); // true
b = Arrays.equals(new double[]{<font color="#0066ff"><i>0D</i></font>}, new double[]{<font color="#0066ff"><i>0D</i></font>}); // true
// When comparing Object arrays, null elements are equals.
// If the elements are not null, Object.equals() is used.
b = Arrays.equals(new String[]{<font color="#0066ff"><i>"a"</i></font>}, new String[]{<font color="#0066ff"><i>"a"</i></font>}); // true
b = Arrays.equals(new String[]{<font color="#0066ff"><i>null</i></font>}, new String[]{<font color="#0066ff"><i>null</i></font>}); // true
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Related Examples
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e339. <a class="eglink" href="coll_Shuffle.html?l=rel">
Shuffling the Elements of a List or Array
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e340. <a class="eglink" href="coll_GetArrayFromVector.html?l=rel">
Converting a Collection to an Array
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e341. <a class="eglink" href="coll_Array2Col.html?l=rel">
Converting an Array to a Collection
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See also:
<a class="eglink" href="/egs/java.util/pkg.html?l=rel#Bits">
Bits
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<a class="eglink" href="/egs/java.util/pkg.html?l=rel#Collections">
Collections
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<a class="eglink" href="/egs/java.util/pkg.html?l=rel#Dates">
Dates
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<a class="eglink" href="/egs/java.util/pkg.html?l=rel#Hash%20Tables">
Hash Tables
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<a class="eglink" href="/egs/java.util/pkg.html?l=rel#Lists">
Lists
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<a class="eglink" href="/egs/java.util/pkg.html?l=rel#Property%20Files">
Property Files
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<a class="eglink" href="/egs/java.util/pkg.html?l=rel#Sets">
Sets
</a>
<a class="eglink" href="/egs/java.util/pkg.html?l=rel#Sorted%20Collections">
Sorted Collections
</a>
<a class="eglink" href="/egs/java.util/pkg.html?l=rel#Time">
Time
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<a class="eglink" href="/egs/java.util/pkg.html?l=rel#Timers">
Timers
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