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+indexof(ch:char)

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Return type int. Returns the index of the first occurrence of ch in the string. Returns-1 if not matched. import java.lang.String; class indexof{                         public static void main(String[] args){                          String str="Welcome to java";                         int i="welcome".indexOf('l');                        System.out.println("Index of l in \" "+str+"\"  is : "+i);                      } } Output :    Index of l in "Welcome to java is : 2
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Program to plot Quadrant strip

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#include<GL/glut.h> #include<GL/glu.h> #include<GL/gl.h> void quadstrip() { glClear(GL_COLOR_BUFFER_BIT); glColor3f(1,0,0); glBegin(GL_QUAD_STRIP); glVertex2i(-60,0); glVertex2i(-40,50); glVertex2i(60,30); glColor3f(0,1,0); glVertex2i(60,-50); glVertex2f(45,61); glEnd(); glFlush(); } void init() { glMatrixMode(GL_PROJECTION); glLoadIdentity(); gluOrtho2D(-65,65,-65,65); } int main(int argc,char **argv) { glutInitDisplayMode(GLUT_RGB|GLUT_SINGLE); glutInitWindowSize(500,500); glutCreateWindow("QUAD STRIP"); init(); glutDisplayFunc(quadstrip); glutMainLoop(); }
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How to initialize an array.

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#include<iostream> #include<conio.h> using namespace std; int main() { int array[10]; //an array of 10 same data type elements cout<<"Enter 10 elements : "; for(int i=0;i<10;i++)              // for loop to for getting values for array 10 times { cin>>array[i];            //getting values form user } cout<<"10 elements you enterd are: "; for(int i=0;i<10;i++) { cout<<array[i]<<"   ";       //printing all entered values } getch(); return 0; }
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