Java

Java - Types of java

1. Core java
2. Advanced java
3. Android java

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Data Types

Primitive data Type 1.integer 2.char 3.double 4.float

Non-Primitive data Type 1.string 2.boolean

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Variables - Types of Variables

1. Local
2. Static
3. Instance
4. Final

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Identifer class name , method name called identifer

1. Public
2. Private
3. Protected
4. Default

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Input and Output

Scanner class (java.util.Scanner)

class - first letter always capital util - predefiend class store

Scanner obj-name = new Scanner(System.in);

new - this keyword used always creation obj

nextInt() - for integer value nexLine() - for String value nexDouble() - for nexDouble value

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Control Flow

Conditional statement - if , if else, else if , nested if, switch Looping statement Transfer statement