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기말고사.txt1. ----------------------------------------------------------------
public class HellowJava {
static int var = 100;
public static void main(String[] args) {
int num1 = 100, num2 = 0;
try {
System.out.println(num1/num2);
}
catch(java.lang.ArithmeticException e) {
System.out.println("계산에 문제가 있습니다");
}
}
}
/*
*
* int var = 0;
System.out.println(var);
int sum = addFunction(10,20);
System.out.println(sum);
* static int addFunction(int num1, int num2) {
int hap;
hap = num1 + num2 + var;
return hap;
}
*
* // TODO Auto-generated method stub
* int one[] = new int[3];
for(int i = 0; i<one.length; i++) {
one[i] = 10 *i;
System.out.println(one[i]);
}
String two[] = {"하나","둘","셋","넷","다섯"};
for(String str : two) {
System.out.println(str);
}
int j = 0;
while(j<one.length) {
System.out.println(one[j]);
j++;
}
}
}
*/
/*
int var1 = 10;
float var2 = 10.1f;
double var3 = 10.2;
char var4 = '안';
String var5 = "안드로이드";
System.out.println(var1);
System.out.println(var2);
System.out.println(var3);
System.out.println(var4);
System.out.println(var5);
int count = 85;
if(count >= 90) {
System.out.println(" 합격(장학생)");
}else if(count >= 60) {
System.out.println("합격");
}else {
System.out.println(" 불합격");
}
int jumsu = (count/10)*10;
switch(jumsu) {
case 100:
case 90:
System.out.println(" 합격(장학생)");
break;
case 80:
System.out.println(" 80점 합격");
break;
case 70:
System.out.println(" 70점 합격");
break;
case 60:
System.out.println(" 60점 합격");
break;
default:
System.out.println(" 불합격");
}
*/
2. ----------------------------------------------------------------
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public class Car {
String color;
int speed = 0;
static int carCount = 0;
final static int MAXSPEED = 200;
final static int MINSPEED = 0;
static int currentCarCount() {
return carCount;
}
Car(String color, int speed) {
this.color = color;
this.speed = speed;
carCount ++;
}
Car(int speed){
this.speed = speed;
}
Car(){
}
int getSpeed() {
return speed;
}
void upSpeed(int value) {
if(speed + value >= 200)
speed = 200;
else
speed = speed +value;
}
void downSpeed(int value) {
if(speed-value <=0)
speed=0;
else
speed = speed-value;
}
String getColor() {
return color;
}
}
3. ----------------------------------------------------------------
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public class exam07 {
//public static void main(String[] args) {
Automobile auto = new Automobile();
auto.upSpeed(3000);
System.out.println("승용차의 속도는"
+ auto.getSpeed()+"km 입니다");
}
}
/*
*
Car myCar1 = new Car("빨강",0);
Car myCar2 = new Car("파랑",0);
Car myCar3 = new Car("초록",0);
System.out.println("생산된 차의 대수-->"
+Car.carCount);
System.out.println("생산된 차의 대수-->"
+Car.currentCarCount());
System.out.println("차의 최고 제한속도-->"
+Car.MAXSPEED);
*
*
public class exam07 {
public static void main(String[] args) {
Car myCar1 = new Car("빨강",0);
Car myCar2 = new Car("파랑",0);
Car myCar3 = new Car("초록",0);
//Car myCar4 = new Car(0);
//Car myCar5 = new Car();
Car myCar1 = new Car();
myCar1.color = "빨강";
myCar1.speed = 0;
Car myCar2 = new Car();
myCar2.color = "파랑";
myCar2.speed = 0;
Car myCar3 = new Car();
myCar3.color = "초록";
myCar3.speed = 0;
myCar1.upSpeed(50);
System.out.println("자동차1의 색상은 "
+ myCar1.getColor()
+"이며, 속도는"
+ myCar1.getSpeed() + "km 입니다");
myCar2.upSpeed(20);
System.out.println("자동차2의 색상은"
+ myCar2.getColor()
+"이며, 속도는"
+ myCar2.getSpeed() + "km 입니다");
myCar3.upSpeed(250);
System.out.println("자동차3의 색상은"
+ myCar3.getColor()
+"이며, 속도는"
+ myCar3.getSpeed() + "km 입니다");
myCar4.upSpeed(150);
System.out.println("자동차3의 색상은없으며 속도는"
+ myCar4.getSpeed() + "km 입니다");
}
}
*/
4. ----------------------------------------------------------------
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public class Automobile extends Car {
int seatNum;
int getseatNum() {
return seatNum;
}
void upSpeed(int value) {
if(speed + value >= 300)
speed = 300;
else
speed = speed + (int)value;
}
}
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