In Java Consist of 3 Loops.
1.for loop
2.while loop
3.do while loop
for loop
1 2 3 4 5 6 7 8 9 | Public class Loop1{ public static void main(String[] args) { for(int x=1; x<10; x++) { System.out.println(x); } } } |
1
2
3
4
5
6
7
8
9
While loop
1 2 3 4 5 6 7 8 9 10 | Public class Loop1{ public static void main(String[] args) { int x=0; while(x<10) { x++; System.out.println(x); } } |
Output
1
2
3
4
5
6
7
8
9
10
Do while Loop
1 2 3 4 5 6 7 8 9 10 11 12 | Public class Loop3 { public static void main(String[] args) { int x=0; do{ System.out.println(x); ++x; } while(x<10); } } |
Output
0
1
2
3
4
5
6
7
8
9
Exercises
1 2 3 4 5 6 7 8 9 10 11 | Public class Loop4 { public static void main(String[] args) { int a; for(a=1; a<10; a++) { System.out.println(a*a); } } } |
1
4
9
16
25
36
49
64
81
1 2 3 4 5 6 7 8 9 10 11 12 | Public class Loop5 { public static void main(String[] args) { int x; for(x=1; x<10; x++) { System.out.println((x*x) + 10 + (x*x) ); } } } |
Output
12
18
28
42
60
82
108
138
172
1 2 3 4 5 6 7 8 9 10 11 | Public class Loop6 { public static void main(String[] args) { int x,y; for(x=1,y=1; x<10; x++,y++) { System.out.println(x+y); } } } |
Output
2
4
6
8
10
12
14
16
18
1 2 3 4 5 6 7 8 9 10 11 12 13 | Public class Loop7 { public static void main(String[] args) { int x,y,z; for(x=1,y=1,z=1; x<10; x++,y++,z++) { System.out.println(x*y*z); } } } |
Output
1
8
27
64
125
216
343
512
729
1 2 3 4 5 6 7 8 9 10 11 12 13 14 | Public class Loop8 { public static void main(String[] args) { int x,y,z; for(x=1,y=1,z=1; x<10; x++,y--,z--) { System.out.println(x*y*z); } } } |
Output
1
0
3
16
45
96
175
288
1 2 3 4 5 6 7 8 9 10 11 12 13 14 | Public class Loop9 { public static void main(String[] args) { int x=0; int y=10; while(x<10) { x++; System.out.println(x*y); } } } |
Output
10
20
30
40
50
60
70
80
90
100
1 2 3 4 5 6 7 8 9 10 11 12 13 14 | Public class Loop9 { public static void main(String[] args) { int x=0; int y=10; while(x>-10) { x--; System.out.println(x*y); } } } |
Output
-10
-20
-30
-40
-50
-60
-70
-80
-90
-100
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | Public class Loop9 { public static void main(String[] args) { int x=1; int y=2; int z=3; while((z=x++)<10) { y++; System.out.println("******"); System.out.println(x*y); } } } |
Output
******
6
******
12
******
20
******
30
******
42
******
56
******
72
******
90
******
110
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 | Public class Loop9 { public static void main(String[] args) { int x=5; int y=3; int z=2; while(x>1) { x--; y--; z--; System.out.println("x= " +x); System.out.println("y= " +y); System.out.println("z= " +z); } } } |
Output
x= 4
y= 2
z= 1
x= 3
y= 1
z= 0
x= 2
y= 0
z= -1
x= 1
y= -1
z= -2
1 2 3 4 5 6 7 8 9 10 11 12 13 14 | Public class Loop10 { public static void main(String[] args) { int x=1; int y =2; do{ System.out.println((x++)+(y++)); } while(x<10); } } } |
Output
3
5
7
9
11
13
15
17
19
1 2 3 4 5 6 7 8 9 10 11 12 13 14 | Public class Loop10 { public static void main(String[] args) { int x=1; int y =2; do{ System.out.println((x++)+(y++)); } while(x<10); } } } |
break Keyword
1 2 3 4 5 6 7 8 9 10 11 12 13 | Public class Loop11 { public static void main(String[] args) { for(int x=1; x<10; x++) { System.out.println(x); if(x==5) { break; } } } |
Output
1
2
3
4
5
1 2 3 4 5 6 7 8 9 10 11 12 13 14 | Public class Loop12 { public static void main(String[] args) { int x=1; int y=2; do{ if(x==3) break; System.out.println((x++)+(y++)); }while(x<10); } } |
Output
3
5
1 2 3 4 5 6 7 8 9 10 11 12 | Public class Loop13 { public static void main(String[] args) { for(int x=1; x<10; x--) { System.out.println(x); if(x==-10) break; } } } |
Output
1
0
-1
-2
-3
-4
-5
-6
-7
-8
-9
-10
Continue Keyword
1 2 3 4 5 6 7 8 9 10 11 12 | public class Loop14 { public static void main(String[] args) { for(int x=1; x<10; x++) { if(x==3) continue; System.out.println(x); } } } |
1
2
4
5
6
7
8
9
1 2 3 4 5 6 7 8 9 10 11 12 | public class Loop15 { public static void main(String[] args) { for(int x=5; x<10; x++) { if(x==7) continue; System.out.println(x); } } } |
Output
5
6
8
9
