Arrays snippet w/ string illustration (Java)
public class Collection { public static void main( String [] args){ int [] arr, arr1; //int arr []; is also allowed but not preferred arr = new int[5]; arr1 = new int[] {10, 12, 33,43}; for(int i : arr){ System.out.println(i); } System.out.println("-------------------------"); for(int i = 0; i < arr1.length ; i++){ System.out.println(arr1[i]); } System.out.println("-------------------------"); int [] [] arr3 = new int[3][]; arr3[0] = new int[2]; arr3[1] = new int[3]; arr3[2] = new int[2]; for(int i = 0; i < arr3.length ; i++){ for(int j=0;j<arr3[i].length;j++){ System.out.printf(arr3[i][j] + " "); //printf so that on each loop new line is not automatically generated } System.out.println(); } System.out.println("-------------------------"); for(String str : args){ //This is for command line arguement. The class name is not counted as arguement in case of java but in C++ it is counted System.out.println(str); } System.out.println("-------------------------"); String str, str1; str = "Pratik"; System.out.println(str); str1 = "Professional"; if(str.contains("a")){ System.out.println("The String "+str+" contains 'a' at location " + str.lastIndexOf("a")); } if(str.equals(str1)){ System.out.println("Both Strings are equal \n"); } else System.out.println("Both Strings are not equal. \n"); } } Output:
Pratik
The String Pratik contains ‘a’ at location 2
Both Strings are not equal.