測試Java程式字元與整數的轉換

package com.ch01;

public class TestJava1 {

    public static void main(String[] args) {

        String str = "這是一個測試字串";
        System.out.println(str.indexOf('測'));
        System.out.println(str.indexOf('空'));
        char ch1 = '字';
        System.out.printf("a. ch1 -> %d\n", (int) ch1);
        int in1 = 23383;
        System.out.printf("b. in1 -> %c\n", (char) in1);
    }
}