CODEWITHSUNDEEP
javaloopsunicode
David
David

Reputation: 89

Is there a way to input a unicode value and output its respective char?

I have here some code trying to output seat numbers. The output is formatted as such for numRows = 2 and numCols = 3: 1A 1B 1C 2A 2B 2C

My problem below is with my char.forDigit method. What I am trying to do is input Unicode values (65 being A, 66 being B, etc) and output their respective chars. Any help?

for (int i = 1; i <= numRows; i++){
     for (int j = 1; j <= numCols; j++){
        System.out.print(i + char.forDigit(65 + j) + " ");
     }
  }

Upvotes: 1

Views: 76

Answers (2)

Elliott Frisch
Elliott Frisch

Reputation: 201447

char is a primitive type, and you cannot invoke methods on a primitive type. However, it is also an integral type (which means you can perform arithmetic). You could do something like,

for (int i = 0; i < numRows; i++) {
    for (int j = 0; j < numCols; j++) {
        System.out.printf("%d%c ", 1 + i, 'A' + j);
    }
    System.out.println(); // <-- Don't forget to create a newline for the next row
}

Additionally, based on your stated objective what I am trying to do is input Unicode values (65 being A, 66 being B, etc) and output their respective chars; I would use a basic cast like

int c = 65;
System.out.println((char) c);

or, printf again like

int c = 65;
System.out.printf("%c", c);

Both of which output (the requested)

A

Upvotes: 2

Vaibhav G
Vaibhav G

Reputation: 647

System.out.print(i +""+ ((char)(65 + j)) + " ");

Explicit Type Conversion or type casting.

Upvotes: 1

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