forEach method java code example

Example 1: for each java

int [] intArray = { 10, 20, 30, 40, 50 };
        
for( int value : intArray ) {
   System.out.println( value );
}

Example 2: java for each

//itemset contains variables of type <Data Type>
for(<Data Type> item : itemset) {
  //loop
}

Example 3: java foreach

List<String> someList = new ArrayList<String>();
// add "monkey", "donkey", "skeleton key" to someList
for (String item : someList) {
    System.out.println(item);
}

Example 4: inline foreach java

names.forEach(name -> System.out.println(name));

Example 5: loop in java 8

List<Integer> data = new ArrayList<>();

//Indexed Loop
for(int i = 0,size=data.size();i<size;i++){
	System.out.println(data.get(i));  
}

//For each loop
for(Integer element : data){
	System.out.println(element);
}

//Using forEach
data.forEach(System.out::println);

//Using Stream
data.stream().forEach(System.out::println)
  
//While loop
int i = 0;
while(i<data.size()){
	System.out.println(data.get(i++));  
}