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System.out.write() in Java-not printing the least significant of an integer value

This is my code:

class writedemo
public static void main(String args)
int b;
b=1;
System.out.write(b);
System.out.write('n');




The output I got was the 'apl functional quad question' character(U+2370).

But this code worked:

class writedemo
public static void main(String args)
int b;
b='A';
System.out.write(b);
System.out.write('n');




It prints the character 'A'. Can someone please help me? Am I missing anything?

'A'

3 Answers
3

System.out.write() store and prints the ASCII value. You can use System.out.print() to show your integer value. Difference of both is given below:

System.out.write(65); //will print ASCII value of 65 which is A;
System.out.print(65); // will print just 65


If you pass a character value 'A' to int, the numeric ASCII value is saved. According to the ASCII table the glyph 'A' is converted to 65 as an decimal value. Here is the difference between the methods System.out::print and System.out::write which might be confusing:

'A'

int

'A'

65

System.out::print

System.out::write

System.out.println(b);

65

System.out::print(int x)

x

Prints an integer and then terminate the line.

System.out.write(b); prints A because in System.out::write(int b) the b is understood as a byte:

System.out.write(b);

A

System.out::write(int b)

b

Writes the specified byte to this stream. If the byte is a newline and automatic flushing is enabled then the flush method will be invoked.

Note that the byte is written as given; to write a character that will be translated according to the platform's default character encoding, use the print(char) or println(char) methods.

'1'

1

'1'

'1'

write(int b)

'1'

49

1

1

1

As mentioned by Maantje in his answer.

write(int) interprets the argument as a single character to be
printed, while print(int) converts the integer into a character
string. write(49) prints a "1", while print(49) prints "49".

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