Praktikum OOP
advertisement
PERCOBAAN 1 :
Ketik program di bawah ini, bila terjadi kasalahan waktu compile dan runtime, betulkan!
public class TestGreeting{
public static void main(String[] args){
Greeting hello = new Greeting();
hello.greet();
}
}
class Greeting {
public void greet(){
System.out.println("hi");
}
}
Preview :
PERCOBAAN 2 :
Ketik program di bawah ini, bila terjadi kasalahan waktu compile dan runtime, betulkan!
Nama file : Test1.java
public class Test1{
public static void main(String[] args){
System.out.println("What's wrong with this program?");
}
}
public class TestAnother1{
public static void main(String[] args){
System.out.println("What's wrong with this program?");
}
}
Preview :
PEMBETULAN “Test1.java”
Ahmad Reza Musthafa
1
public class Test1{
public static void main(String[] args){
System.out.println("What's wrong with this program?");
TestAnother1 tes=new TestAnother1();
tes.main();
}
}
class TestAnother1{
public static void main(){
System.out.println("What's wrong with this program?");
}
}
Preview :
PERCOBAAN 3
Ketik program di bawah ini, bila terjadi kasalahan waktu compile dan runtime, betulkan!
Nama file : Test2.java
public class Testing2{
public static void main(String[] args){
System.out.println("What's wrong with this program?");
}
}
Preview :
PEMBETULAN “Test2.java”
public class Test2{
public static void main(String[] args){
System.out.println("What's wrong with this program?");
}
}
Preview :
Ahmad Reza Musthafa
2
PERCOBAAN 4
Ketik program di bawah ini, bila terjadi kasalahan waktu compile dan runtime, betulkan!
Nama file : Test3.java
public class Test3{
public static void main(String args){
System.out.println("What's wrong with this program?");
}
}
Preview :
PEMBETULAN “Test3.java”
public class Test3{
public static void main(String[] args){
System.out.println("What's wrong with this program?");
}
}
Preview :
PERCOBAAN 5 :
Ketik program di bawah ini, bila terjadi kasalahan waktu compile dan runtime, betulkan!
Nama file : Test4.java
public class Test4{
public void main(String[] args){
System.out.println("What's wrong with this program?");
}
}
Preview :
Ahmad Reza Musthafa
3
PEMBETULAN “Test4.java”
public class Test4{
public static void main(String[] args){
System.out.println("What's wrong with this program?");
}
}
Preview :
PERCOBAAN 6 :
Ketik program di bawah ini, bila terjadi kasalahan waktu compile dan runtime, betulkan!
Nama file : Test5.java
public class Test5 {
int[] x = new int[ 10 ];
public Test5() {
for (int i = 0; i<= 10; i++){
x[i] = i;
System.out.println("Isi x ke : " +
i + " = " + x[i]);
}
}
public static void main(String[] args) {
Test5 test = new Test5();
}
}
Preview :
Ahmad Reza Musthafa
4
PEMBETULAN “Test5.java”
public class Test5 {
int[] x = new int[ 11 ];
public Test5() {
for (int i = 0; i<= 10; i++){
x[i] = i;
System.out.println("Isi x ke : " +
i + " = " + x[i]);
}
}
public static void main(String[] args) {
Test5 test = new Test5();
}
}
Preview :
PERCOBAAN 7
Ketik program di bawah ini, bila terjadi kasalahan waktu compile dan runtime, betulkan!
Nama file : Test6.java
public class Test6 {
int[] x = new int[ 10 ];
int val = 20;
Ahmad Reza Musthafa
5
public Test6() {
for (int i = 0; i< 10; i++){
x[i] = i;
float res = val / x[i];
System.out.println("result " + " = " + res);
}
}
public static void main(String[] args) {
Test6 test = new Test6();
}
}
Preview :
PEMBETULAN “Test6.java”
public class Test6 {
int[] x = new int[ 11 ];
float val = 20;
public Test6() {
for (int i = 0; i< 10; i++){
x[i] = i;
float res = val / x[i];
System.out.println("result " + " = " + res);
}
}
public static void main(String[] args) {
Test6 test = new Test6();
}
}
Preview :
Ahmad Reza Musthafa
6
PERCOBAAN 8
Ketik program di bawah ini, bila terjadi kasalahan waktu compile dan runtime, betulkan!
Nama file : Test7.java
public Test7 {
public static void main(String[] args) {
System.out.println("Hallo..");
}
}
Preview :
PEMBETULAN “Test7.java”
public class Test7 {
public static void main(String[] args) {
System.out.println("Hallo..");
}
}
Preview :
PERCOBAAN 9
Ketik program di bawah ini, bila terjadi kasalahan waktu compile dan runtime, betulkan!
Nama file : Test8.java
Ahmad Reza Musthafa
7
public class Test8 {
String name = "Reza";
public void getName(){
return name;
}
public static void main(String[] args) {
Test8 test = new Test8();
System.out.println("Nama saya : " + test.getName());
}
}
Preview :
PEMBETULAN “Test8.java”
public class Test8 {
private String name = "Reza";
public String getName(){
return name;
}
public static void main(String[] args) {
Test8 test = new Test8();
System.out.println("Nama saya : " + test.getName());
}
}
Preview :
PERCOBAAN 10
Ketik program di bawah ini, bila terjadi kasalahan waktu compile dan runtime, betulkan!
Nama file : Test9.java
public class Test9 {
String text = "abaaba";
Ahmad Reza Musthafa
8
public void addText(){
if (text.length() >= 6)
{
text += text;
else
{
text += text.substring(3);
}
}
System.out.println("New Text : " + text);
}
public static void main(String[] args) {
Test9 test = new Test9();
test.addText();
}
}
Preview :
PEMBETULAN “Test9.java”
public class Test9 {
String text = "abaaba";
public void addText(){
if (text.length() >= 6)
{
text += text;
}
else
{
text += text.substring(3);
}
System.out.println("New Text : " + text);
}
public static void main(String[] args) {
Test9 test = new Test9();
test.addText();
}
}
Preview :
Ahmad Reza Musthafa
9
PERCOBAAN 11
Ketik program di bawah ini, bila terjadi kasalahan waktu compile dan runtime, betulkan!
Nama file : Test10.java
public class Test10 {
boolean newAcct = true;
double deposit = 17.29;
public void check(){
if (newAcct == true)
{ double balance = 100.0;
}
if (deposit > 0)
{ balance += deposit;
}
System.out.println("Balance = " + balance);
}
public static void main(String[] args) {
Test10 test = new Test10();
test.check();
}
}
Preview :
PEMBETULAN “Test10.java”
public class Test10 {
boolean newAcct = true;
double deposit = 17.29;
double balance;
public void check(){
if (newAcct == true)
Ahmad Reza Musthafa
10
{ double balance = 100.0;
}
if (deposit > 0)
{ balance =+ deposit;
}
System.out.println("Balance = " + balance);
}
public static void main(String[] args) {
Test10 test = new Test10();
test.check();
}
}
Preview :
Ahmad Reza Musthafa
11