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CharBuffer compareTo() method in Java
A buffer can be compared with another buffer using the method compareTo() in the class java.nio.CharBuffer. This method returns a negative integer if the buffer is less than the given buffer, zero if the buffer is equal to the given buffer and a positive integer if the buffer is greater than the given buffer.
A program that demonstrates this is given as follows −
Example
import java.nio.*;
import java.util.*;
public class Demo {
public static void main(String[] args) {
int n = 5;
try {
CharBuffer buffer1 = CharBuffer.allocate(n);
buffer1.put('A');
buffer1.put('P');
buffer1.put('P');
buffer1.put('L');
buffer1.put('E');
buffer1.rewind();
System.out.println("The first CharBuffer is: " + Arrays.toString(buffer1.array()));
CharBuffer buffer2 = CharBuffer.allocate(n);
buffer2.put('A');
buffer2.put('P');
buffer2.put('P');
buffer2.put('L');
buffer2.put('E');
buffer2.rewind();
System.out.println("The second CharBuffer is: " + Arrays.toString(buffer2.array()));
int val = buffer1.compareTo(buffer2);
if (val == 0)
System.out.println("
Both the buffers are lexicographically equal");
else if (val > 0)
System.out.println("
The first buffer is lexicographically greater than the second buffer");
else
System.out.println("
The second buffer is lexicographically greater than the first buffer");
} catch (IllegalArgumentException e) {
System.out.println("Error!!! IllegalArgumentException");
} catch (ReadOnlyBufferException e) {
System.out.println("Error!!! ReadOnlyBufferException");
}
}
}Output
The first CharBuffer is: [A, P, P, L, E] The second CharBuffer is: [A, P, P, L, E] Both the buffers are lexicographically equal
Updated on: 30-Jul-2019
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