//if syntax
int r=new java.util.Random().nextInt(2);
if (r<1){
	System.out.println("This is true by 'if'.");
}else{
	System.out.println("This is false by 'if'.");
}

//switch syntax
int s=new java.util.Random().nextInt(3);
switch(s){
	case 0:
		System.out.println("This is Case.0 by 'switch'.");
		break;
	case 1:
		System.out.println("This is Case.1 by 'switch'.");
		break;
	case 2:
		System.out.println("This is Case.2 by 'switch'.");
		break;
	default:
		System.out.println("This is default by 'switch'.");
}

//while syntax
int w=1;
while(w<4){
	System.out.println("Count No."+w+" by 'while'.");
	w++;
}

//do while syntax
int dw=3;
do{
	System.out.println("Count No."+dw+" by 'do while'.");
	dw--;
	System.out.println("Count decrease -1 by 'do while'.");
}while(dw>0);


//for syntax
for(int i=1; i<=3; i++){
	System.out.println("Count No."+i+" by 'for'.");
}

//Repeated interruption
for(int i=5; i>=1; i--){
	if(i==3){
		continue;
	}
	if(i==2){
		break;
	}
	System.out.println("Count No."+i+" by 'for/continue(3)/break(2)'.");
}

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