System.out.println("== 숫자 ==");
int intNum = 10;
System.out.println("intNum = " + intNum);
System.out.println(Integer.MIN_VALUE);
System.out.println(Integer.MAX_VALUE);
int intNum2 = Integer.MAX_VALUE;
System.out.println("intNum2 = " + intNum2);
int intNum3 = Integer.MAX_VALUE + 1;
System.out.println("intNum3 = " + intNum3);
long longNum = (long)Integer.MAX_VALUE + 1;
System.out.println("longNum = " + longNum);
float floatNum = 1.23f;
double doubleNum = 1.23;
System.out.println(Float.MAX_VALUE);
System.out.println(Double.MAX_VALUE);
int numBase2 = 0b1100;
System.out.println("numBase = " + numBase2);
int numBase8 = 014;
System.out.println("numBase8 = " + numBase8);
int numBase16 = 0xC;
System.out.println("numBase16 = " + numBase16);
System.out.println("0b" + Integer.toBinaryString(numBase2));
System.out.println("0" + Integer.toBinaryString(numBase8));
System.out.println("0x" + Integer.toHexString(numBase16));
System.out.println("== 부울 ==");
boolean isPass = true;
System.out.println("isPass = " + isPass);
boolean is0k = false;
System.out.println("is0k = " + is0k);
System.out.println("== 문자 ==");
char keyFirst = 'a';
System.out.println("keyFirst = " + keyFirst);
char keyLast = 'z';
System.out.println("keyLast = " + keyLast);
System.out.println((int)keyFirst);
System.out.println((int)keyLast);