LATIHAN PEMOGRAMAN JAVA
(1)
public class Hello
{
/**
* Program Java My first
*/
public static void main( String[] args ){
//menampilkan String Hello world pada layar
System.out.println(“Hello world”);
}
}
Output Program :
Hello world
(2)
public class ArithmeticDemo {
public static void main(String[] args){
//beberapa angka
int i = 37;
int j = 42;
double x = 27.475;
double y = 7.22;
System.out.println(“Nilai Variabel…”);
System.out.println(” i = ” + i);
System.out.println(” j = ” + j);
System.out.println(” x = ” + x);
System.out.println(” y = ” + y);
System.out.println(“Penjumlahan…”);
System.out.println(” i + j = ” + (i + j));
System.out.println(” x + y = ” + (x + y));
//pengurangan angka
System.out.println(“Pengurangan…”);
System.out.println(” i – j = ” + (i – j));
System.out.println(” x – y = ” + (x – y));
//pengalian angka
System.out.println(“Pengalian…”);
System.out.println(” i * j = ” + (i * j));
System.out.println(” x * y = ” + (x * y));
//pembagian angka
System.out.println(“Pembagian…”);
System.out.println(” i / j = ” + (i / j));
System.out.println(” x / y = ” + (x / y));
//Penghitungan modulus (sisa pembagian)
System.out.println(“Penghitungan modulus…”);
System.out.println(” i % j = ” + (i % j));
System.out.println(” x % y = ” + (x % y));
//Penghitungan kombinasi variabel
System.out.println(“kombinasi variabel…”);
System.out.println(” j + y = ” + (j + y));
System.out.println(” i * x = ” + (i * x));
}
}
Output Program:
Nilai variabel…
i = 37
j = 42
x = 27.475
y = 7.22
Penjumlahan…
i + j = 79
x + y = 34.695
Pengurangan…
i – j = -5
x – y = 20.255
Pengalian…
i * j = 1554
x * y = 198.37
Pembagian…
i / j = 0
x / y = 3.8054 Computing Nilai Modulus…
i % j = 37
x % y = 5.815
Kombinasi variabel…
j + y = 49.22
i * x = 1016.58
(3)
public class RelationalDemo{
public static void main(String[] args){
//beberapa angka
int i = 37;
int j = 42;
int k = 42;
System.out.println(“Nilai variabel…”);
System.out.println(” i = ” +i);
System.out.println(” j = ” +j);
System.out.println(” k = ” +k);
//lebih besar dari
System.out.println(“Lebih besar…”);
System.out.println(” i > j = “+(i>j));//false
System.out.println(” j > i = “+(j>i));//true
System.out.println(” k > j = “+(k>j));//false
//lebih besar atau sama dengan
System.out.println(“lebih besar atau sama dengan…”);
System.out.println(” i >= j = “+(i>=j));//false
System.out.println(” j >= i = “+(j>=i));//true
System.out.println(” k >= j = “+(k>=j));//true
//lebih kecil
System.out.println(“lebih kecil…”);
System.out.println(” i < j = “+(i<j));//true
System.out.println(” j < i = “+(j<i));//false
System.out.println(” k < j = “+(k<j));//false
//lebih kecil atau sama dengan
System.out.println(“lebih kecil atau sama dengan…”);
System.out.println(” i <= j = “+(i<=j));//true
System.out.println(” j <= i = “+(j<=i));//false
System.out.println(” k <= j = “+(k<=j));//true
//sama dengan
System.out.println(“sama dengan…”);
System.out.println(” i == j = ” + (i==j));//false
System.out.println(” k == j = ” + (k==j));//true
//tidak sama dengan
System.out.println(“tidak sama dengan…”);
System.out.println(” i != j = ” + (i!=j));//true
System.out.println(” k != j = ” + (k!=j));//false
}
}
Output Program
Nilai variabel…
i = 37
j = 42
k = 42
Lebih besar…
i > j = false
j > i = true
k > j = false
Lebih besar atau sama dengan…
i >= j = false
j >= i = true
k >= j = true
Lebih kecil…
i < j = true
j < i = false
k < j = false
Lebih kecil atau sama dengan…
i <= j = true
j <= i = false
k <= j = true
Sama dengan…
i == j = false
k == j = true
Tidak sama dengan…
i != j = true
k != j = false
(4)
public class TestOR {
public static void main( String[] args ){
int i = 0;
int j = 10;
boolean test= false;
//contoh ||
test = (i < 10) || (j++ > 9);
System.out.println(i);
System.out.println(j);
System.out.println(test);
//contoh |
test = (i < 10) | (j++ > 9);
System.out.println(i);
System.out.println(j);
System.out.println(test);
}
}
Output program
0
10
true
0
11
true
(5)
public class TestXOR {
public static void main( String[] args ){
boolean val1 = true;
boolean val2 = true;
System.out.println(val1 ^ val2);
val1 = false; val2 = true;
System.out.println(val1 ^ val2);
val1 = false; val2 = false;
System.out.println(val1 ^ val2);
val1 = true; val2 = false;
System.out.println(val1 ^ val2);
}
}
Output Program :
false
true
false
true
(6)
public class ConditionalOperator {
public static void main( String[] args ){
String status = “”;
int grade = 80;
//Status dari siswa
status = (grade >= 60)?”Passed”:”Fail”;
//Cetak status
System.out.println( status );
}
}
Output program:
Passed
cutajaasri 